Substituted tricyclics

ABSTRACT

A class of novel tricyclics is disclosed together with the use of such compounds for inhibiting sPLA 2  mediated release of fatty acids for treatment of conditions such as septic shock.

This application is a DIV of Ser. No. 09/063,066, filed Apr. 21, 1998U.S. Pat. No. 6,177,440, which claims benefit of Provisional ApplicationNo. 60/029,849, filed Oct. 30, 1996, and a CIP of Ser. No. 08/959,477,filed Oct. 28, 1997, ABN.

FIELD OF THE INVENTION

This invention relates to novel substituted tricyclic organic compoundsuseful for inhibiting sPLA₂ mediated release of fatty acids forconditions such as septic shock.

BACKGROUND INFORMATION

The structure and physical properties of human non-pancreatic secretoryphospholipase A₂ (hereinafter called, “sPLA₂”) has been thoroughlydescribed in two articles, namely, “Cloning and Recombinant Expressionof Phospholipase A₂ Present in Rheumatoid Arthritic Synovial Fluid” bySeilhamer, Jeffrey J.; Pruzanski, Waldemar; Vadas Peter; Plant, Shelley;Miller, Judy A.; Kloss, Jean; and Johnson, Lorin K.; The Journal ofBiological Chemistry, Vol. 264, No. 10, Issue of April 5, pp. 5335-5338,1989; and “Structure and Properties of a Human Non-pancreaticPhospholipase A₂” by Kramer, Ruth M.; Hession, Catherine; Johansen,Berit; Hayes, Gretchen; McGray, Paula; Chow, E. Pingchang; Tizard,Richard; and Pepinsky, R. Blake; The Journal of Biological Chemistry,Vol. 264, No. 10, Issue of April 5, pp. 5768-5775, 1989; the disclosuresof which are incorporated herein by reference.

It is believed that sPLA₂ is a rate limiting enzyme in the arachidonicacid cascade which hydrolyzes membrane phospholipids. Thus, it isimportant to develop compounds which inhibit sPLA₂ mediated release offatty acids (e.g., arachidonic acid). Such compounds would be of valuein general treatment of conditions induced and/or maintained byoverproduction of sPLA₂ such as septic shock, adult respiratory distresssyndrome, pancreatitis, trauma-induced shock, bronchial asthma, allergicrhinitis, rheumatoid arthritis, etc.

It is desirable to develop new compounds and treatments for sPLA₂induced diseases.

Alexander, et al., U.S. Pat. Nos. 3,939,177 and 3,979,391, disclose1,2,3,4-tetrahydrocarbazoles useful as antibacterial agents.

SUMMARY OF THE INVENTION

This invention provides tricyclic compounds as depicted in the generalformula (I) below:

wherein;

A is phenyl or pyridyl wherein the nitrogen is at the 5-, 6-, 7- or8-position;

one of B or D is nitrogen and the other is carbon;

Z is cyclohexenyl, phenyl, pyridyl, wherein the nitrogen is at the 1-,2-, or 3-position, or a 6-membered heterocyclic ring having oneheteroatom selected from the group consisting of sulfur or oxygen at the1-, 2- or 3-position, and nitrogen at the 1-, 2-, 3- or 4-position;

is a double or single bond;

R²⁰ is selected from groups (a), (b) and (c) where;

(a) is —(C₅-C₂₀)alkyl, —(C₅-C₂₀)alkenyl, (C₅-C₂₀)alkynyl, carbocyclicradicals, or heterocyclic radicals, or

(b) is a member of (a) substituted with one or more independentlyselected non-interfering substituents; or

(c) is the group —(L)—R⁸⁰; where, —(L)— is a divalent linking group of 1to 12 atoms selected from carbon, hydrogen, oxygen, nitrogen, andsulfur; wherein the combination of atoms in —(L)— are selected from thegroup consisting of (i) carbon and hydrogen only, (ii) one sulfur only,(iii) one oxygen only, (iv) one or two nitrogen and hydrogen only, (v)carbon, hydrogen, and one sulfur only, and (vi) and carbon, hydrogen,and oxygen only; and where R⁸⁰ is a group selected from (a) or (b);

R²¹ is a non-interfering substituent;

R1′ is —NHNH₂, —NH₂ or —CONH₂;

R^(2′) is selected from the group consisting of —OH, and—O(CH₂)_(t)R^(5′) where

R^(5′) is H, —CN, —NH₂, —CONH₂, —CONR⁹R¹⁰ —NHSO₂R¹⁵; —CONHSO₂R¹⁵, whereR¹⁵ is —(C₁-C₆)alkyl or —CF₃; phenyl or phenyl substituted with —CO₂H or—CO₂(C₁-C₄)alkyl; and —(L_(a))— (acidic group), wherein —(L_(a))— is anacid linker having an acid linker length of 1 to 7 and t is 1-5;

R^(3′) is selected from non-interfering substituent, carbocyclicradicals, carbocyclic radicals substituted with non-interferingsubstituents, heterocyclic radicals, and heterocyclic radicalssubstituted with non-interfering substituents; or a pharmaceuticallyacceptable racemate, solvate, tautomer, optical isomer, prodrugderivative or salt thereof;

provided that; when R^(3′) is H, R²⁰ is benzyl and m is 1 or 2; R^(2′)cannot be —O(CH₂)_(m)H; and

provided that when D is nitrogen, the heteroatom of Z is selected fromthe group consisting of sulfur or oxygen at the 1-, 2- or 3-position andnitrogen at the 1-, 2-, 3- or 4-position.

These substituted tricyclics are effective in inhibiting human sPLA₂mediated release of fatty acids.

This invention is also a pharmaceutical formulation comprising acompound of formula I in association with one or more pharmaceuticallyacceptable diluents, carriers and excipients.

This invention is also a method of inhibiting sPLA₂ comprisingadministering to a mammal in need of such treatment a therapeuticallyeffective amount of a compound of formula I.

According to a further aspect of the present invention, there isprovided a method of selectively inhibiting sPLA₂ in a mammal in need ofsuch treatment comprising administering to said mammal a therapeuticallyeffective amount of a compound of formula I.

This invention, further provides a compound of formula I for use as amedicament in the treatment of inflammatory diseases such as, sepsis,septic shock, adult respiratory distress syndrome, pancreatitis,trauma-induced shock, bronchial asthma, allergic rhinitis, rheumatoidarthritis, cystic fibrosis, stroke, acute bronchitis, chronicbronchitis, acute bronchiolitis, chronic bronchiolitis, osteoarthritis,gout, spondylarthropathris, ankylosing spondylitis, Reiter's syndrome,psoriatic arthropathy, enterapathric spondylitis, Juvenile arthropathyor juvenile ankylosing spondylitis, Reactive arthropathy, infectious orpost-infectious arthritis, gonoccocal arthritis, tuberculous arthritis,viral arthritis, fungal arthritis, syphilitic arthritis, Lyme disease,arthritis associated with “vasculitic syndromes”, polyarteritis nodosa,hypersensitivity vasculitis, Luegenec's granulomatosis, polymyalginrheumatica, joint cell arteritis, calcium crystal depositionarthropathris, pseudo gout, non-articular rheumatism, bursitis,tenosynomitis, epicondylitis (tennis elbow), carpal tunnel syndrome,repetitive use injury (typing), miscellaneous forms of arthritis,neuropathic joint disease (charco and joint), hemarthrosis(hemarthrosic), Henoch-Schonlein Purpura, hypertrophic osteoarthropathy,multicentric reticulohistiocytosis, arthritis associated with certaindiseases, surcoilosis, hemochromatosis, sickle cell disease and otherhemoglobinopathries, hyperlipoproteineimia, hypogammaglobulinemia,hyperparathyroidism, acromegaly, familial Mediterranean fever, Behat'sDisease, systemic lupus erythrematosis, or relapsing polychondritis andrelated diseases which comprises administering to a mammal in need ofsuch treatment a therapeutically effective amount of the compound offormula I in an amount sufficient to inhibit sPLA₂ mediated release offatty acid and to thereby inhibit or prevent the arachidonic acidcascade and its deleterious products.

This invention provides, in addition, a process for preparing compoundsof formula II

wherein;

Z is cyclohexenyl, or phenyl,

R²¹ is a non-interfering substituent;

R¹ is —NHNH₂ or —NH₂;

R² is selected from the group consisting of —OH and —O(CH₂)_(m)R⁵ where

R⁵ is H, —CO₂H, —CONH₂, —CO₂(C₁-C₄ alkyl)

 where R⁶ and R⁷ are each independently —OH or —O(C₁-C₄)alkyl; —SO₃H,—SO₃(C1-C4 alkyl), tetrazolyl, —CN, —NH₂, —NHSO₂R¹⁵, —CONHSO₂R¹⁵; whereR¹⁵ is —(C₁-C₆)alkyl or —CF₃; phenyl or phenyl substituted with —CO₂H or—CO₂(C₁-C₄)alkyl where m is 1-3;

R³ is H, —O(C₁-C₄)alkyl, halo, —(C₁-C₆)alkyl, phenyl,—(C₁-C₄)alkylphenyl; phenyl substituted with —(C₁-C₆)alkyl, halo, or—CF₃; —CH₂OSi(C₁-C₆)alkyl, furyl, thiophenyl, —(C₁-C₆)hydroxyalkyl,—(C₁-C₆)alkoxy(C₁-C₆)alkyl, —(C₁-C₆)alkoxy(C₁-C₆)alkenyl; or—(CH₂)_(n)R⁸ where R⁸ is H, —CONH₂, —NR⁹R¹⁰, —CN or phenyl where R⁹ andR¹⁰ are independently hydrogen, —CF₃, phenyl, —(C₁-C₄)alkyl,—(C₁-C₄)alkylphenyl or -phenyl(C₁-C₄)alkyl and n is 1 to 8; and

R⁴ is H, —(C₅-C₁₄)alkyl, —(C₃-C₄)cycloalkyl, pyridyl, phenyl or phenylsubstituted with from 1-5 substituents selected from the groupconsisting of —(C₁-C₆)alkyl, halo, —CF₃, —OCF₃, —(C₁-C₄)alkoxy, —CN,—(C₁-C₄)alkylthio, phenyl(C1-C₄)alkyl, —(C₁-C₄)alkylphenyl, phenyl,phenoxy, —OR⁹; where R⁹ and R¹⁰ are independently hydrogen, —CF₃,phenyl, —(C₁-C₄)alkyl, (C₁-C₄)alkylphenyl or -phenyl(C₁-C₄)alkyl;tetrazole; tetrazole substituted with —(C₁-C₄)alkyl or—(C₁-C₄)alkylphenyl: or naphthyl;

or a pharmaceutically acceptable racemate, solvate, tautomer, opticalisomer, prodrug derivative or salt, thereof;

a) esterifying a compound of formula XVI

where X is halo;

to form a compound of formula XV

where PG is an acid protecting group

b) reducing a compound of formula XV to form a compound of formula XIV

 where PG is an acid protecting group

c) condensing a compound of formula XIV

with a compound of formula XIII

where R³(a) is H, —O(C₁-C₄)alkyl, halo, —(C₁-C₆)alkyl, phenyl,—(C₁-C₄)alkylphenyl; phenyl substituted with —(C₁-C₆)alkyl, halo or—CF₃; —CH₂OSi(C₁-C₆)alkyl, furyl, thiophenyl, —(C₁-C₆)hydroxyalkyl,—(C₁-C₆)alkoxy(C₁-C₆)alkyl, —(C₁-C₆)alkoxy(C₁-C₆)alkenyl; or—(CH₂)_(n)R⁸ where R⁸ is H, —NR⁹R¹⁰, —CN or phenyl where R⁹ and R¹⁰ areindependently hydrogen, —CF₃, phenyl, —(C₁-C₄)alkyl, —(C₁-C₄)alkylphenylor -phenyl(C₁-C₄)alkyl and n is 1 to 8;

to form a compound of formula XII

d) cyclizing a compound of formula XII

 to form a compound of formula XI

e) alkylating a compound of formula XI with an alkylating agent of theformula XCH₂R⁴, where X is halo to form a compound of formula X

f) dehydrogenating a compound of formula X to form a compound of formulaIX

g) aminating a compound of formula IX to form a compound of formula VIII

h) alkylating a compound of formula VIII with an alkylating agent offormula XCH₂R¹⁵ where X is halo and R¹⁵ is —CO₂R¹⁶, —SO₃R¹⁶,—P(O)(OR¹⁶)₂, or —P(O)(OR¹⁶)H, where R¹⁶ is an acid protecting group toform a compound of formula VII

i) optionally hydrolyzing a compound of formula VII to form a compoundof formula I and optionally salifying a compound of formula I.

This invention provides, in addition, a process for preparing compoundsof formula II or a pharmaceutically acceptable racemate, solvate,tautomer, optical isomer, prodrug derivative or salt, thereof;

which process comprises the steps of:

a) esterifying a compound of formula XVI

 where X is halo to form a compound of formula XV

 where PG is an acid protecting group;

b) condensing a compound of formula XV with a compound of formula XVII

 to form a compound of formula XVIII

c) cyclizing a compound of formula XVIII to form a compound of formulaXIX.

d) alkylating a compound of formula XIX with an alkylating agent of theformula XCH₂R⁴, where X is halo, to form a compound of formula XX

e) dealkylating a compound of formula XX to form a compound of formulaIX

f) aminating compound of formula IX to form a compound of formula VIII

g) alkylating a compound of formula VIII with an alkylating agent offormula XCH₂R¹⁵, where X is halo and R¹⁵ is —CO₂R¹⁶, —SO₃R¹⁶,P(O)(OR¹⁶)₂, or —P(O)(OR¹⁶)H, where R¹⁶ is an acid protecting group toform a compound of formula VII

h) optionally hydroyzing a compound of formula VII to form a compound offormula I and optionally salifying a compound of formula I.

This invention provides, in addition, new intermediates of the formulaIII

wherein;

PG is an acid protecting group

R²¹ is a non-interfering substituent;

R¹² is H or CH₂R⁴ where

R⁴ is H, —(C₅-C₁₄)alkyl, —(C₃-C₁₄)cycloalkyl, pyridyl, phenyl or phenylsubstituted with from 1-5 substituents selected from the groupconsisting of —(C₁-C₆)alkyl, halo, —CF₃, —OCF₃, —(C₁-C₄)alkoxy, —CN,—(C₁-C₄)alkylthio, phenyl(C1-C₄)alkyl, —(C₁-C₄)alkylphenyl, phenyl,phenoxy, —OR⁹; where R⁹ and R¹⁰ are independently hydrogen, —CF₃,phenyl, —(C₁-C₄)alkyl, —(C₁-C₄)alkylphenyl or -phenyl(C₁-C₄)alkyl;tetrazole; tetrazole substituted with —(C₁-C₄)alkyl or—(C₁-C₄)alkylphenyl: or naphthyl;

R³(a) is H, —O(C₁-C₄)alkyl, halo, —(C₁-C₆)alkyl, phenyl,—(C₁-C₄)alkylphenyl; phenyl substituted with —(C₁-C₆)alkyl, halo or—CF₃; —CH₂OSi(C₁-C₆)alkyl, furyl, thiophenyl, —(C₁-C₆)hydroxyalkyl,—(C₁-C₆)alkoxy(C₁-C₆)alkyl, —(C₁-C₆)alkoxy(C₁-C₆)alkenyl; or—(CH₂)_(n)R⁸ where R⁸ is H, —NR⁹R¹⁰, —CN or phenyl where R⁹ and R¹⁰ areindependently hydrogen, —CF₃, phenyl, —(C₁-C₄)alkyl, —(C₁-C₄)alkylphenylor -phenyl(C₁-C₄)alkyl and n is 1 to 8:

Z is cyclohexenyl or phenyl; and

X is halo.

As another embodiment, this invention provides intermediates of theformula IV

wherein;

PG is an acid protecting group

R²¹ is a non-interfering substituent

R¹² or CH₂R⁴ where

R⁴ is H, —(C₅-C₁₄)alkyl, —(C₃-C₁₄)cycloalkyl, pyridyl, phenyl or phenylsubstituted with from 1-5 substituents selected from the groupconsisting of —(C₁-C₆)alkyl, halo, —CF₃, —OCF₃, —(C₁-C₄)alkoxy, —CN,—(C₁-C₄)alkylthio, phenyl(C1-C₄)alkyl, —(C₁-C₄)alkylphenyl, phenyl,phenoxy, —OR⁹; where R⁹and R¹⁰ are independently hydrogen, —CF₃, phenyl,—(C₁-C₄)alkyl, —(C₁-C₄)alkylphenyl or -phenyl(C₁-C₄)alkyl; tetrazole;tetrazole substituted with —(C₁-C₄)alkyl or —(C₁-C₄)alkylphenyl: ornaphthyl;

R³(a) is H, —O(C₁-C₄)alkyl, halo, —(C₁-C₆)alkyl, phenyl,—(C₁-C₄)alkylphenyl; phenyl substituted with —(C₁-C₆)alkyl, halo or—CF₃, —CH₂OSi(C₁-C₆)alkyl, furyl, thiophenyl, —(C₁-C₆)hydroxyalkyl,—(C₁-C₆)alkoxy(C₁-C₆)alkyl, —(C₁-C₆)alkoxy(C₁-C₆)alkenyl; or—(CH₂)_(n)R⁸ where R⁸ is H, —NR⁹R¹⁰, —CN or phenyl where R⁹ and R¹⁰ areindependently hydrogen, —CF₃, phenyl, —(C₁-C₄)alkyl, —(C₁-C₄)alkylphenylor -phenyl(C₁-C₄)alkyl and n is 1 to 8;

R¹¹ is —OH, ═O, —O(C₁-C₄)alkyl or —O(CH₂)R¹⁵, where R¹⁵ is —CO₂R¹⁶,—SO₃R¹⁶, P(O)(OR¹⁶)₂, or —P(O)(OR¹⁶)H, where R¹⁶ is an acid protectinggroup; and

A and Z are each independently phenyl or cyclohexenyl provided that Aand Z cannot both be phenyl.

In a still further embodiment, this invention provides new intermediatesof the formula

where

PG is an acid protecting group;

R²¹ is a non-interfering substituent; and

R³(a) is H, —O(C₁-C₄)alkyl, halo, —(C₁-C₆)alkyl, phenyl,—(C₁-C₄)alkylphenyl; phenyl substituted with —(C₁-C₆)alkyl, halo or—CF₃; —CH₂OSi(C₁-C₆)alkyl, furyl, thiophenyl, —(C₁-C₆)hydroxyalkyl,—(C₁-C₆)alkoxy(C₁-C₆)alkyl, —(C₁-C₆)alkoxy(C₁-C₆)alkenyl; or—(CH₂)_(n)R⁸ where R⁸ is H, —NR⁹R¹⁰, —CN or phenyl where R⁹ and R¹⁰ areindependently hydrogen, —CF₃, phenyl, —(C₁-C₄)alkyl, —(C₁-C₄)alkylphenylor -phenyl(C₁-C₄)alkyl and n is 1 to 8.

Other objects, features and advantages of the present invention willbecome apparent from the subsequent description and the appended claims.

DETAILED DESCRIPTION OF THE INVENTION

Definitions

As used herein, the term, “alkyl” by itself or as part of anothersubstituent means, unless otherwise defined, a straight or branchedchain monovalent hydrocarbon radical such as methyl, ethyl, n-propyl,isopropyl, n-butyl, tertiary butyl, isobutyl, sec-butyl tert butyl,n-pentyl, isopentyl, neopentyl, heptyl, hexyl, octyl, nonyl, decyl,undecyl, dodecyl, tridecyl, tetradecyl and the like. The term “alkyl”includes —(C₁-C₂)alkyl, —(C₁-C₄)alkyl, —(C₁-C₆)alkyl, —(C₅-C₁₄)alkyl,and —(C₁-C₁₀)alkyl.

The term “alkenyl” as used herein represents an olefinically unsaturatedbranched or linear group having at least one double bond. Examples ofsuch groups include radicals such as vinyl, allyl, 2-butenyl, 3-butenyl,2-pentenyl, 3-pentenyl, 4-pentenyl, 2-hexenyl, 3-hexenyl, 4-hexenyl,5-hexenyl, 2-heptenyl, 3-heptenyl, 4-heptenyl, 5-heptenyl, 6-heptenyl aswell as dienes and trienes of straight and branched chains.

The term “alkynyl” denotes such radicals as ethynyl, propynyl, butynyl,pentynyl, hexynyl, heptynyl as well as di- and tri-ynes.

The term “halo” means chloro, fluoro, bromo or iodo.

The term “—(C₁-C₄)alkoxy”, as used herein, denotes a group such asmethoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, t-butoxy and likegroups, attached to the remainder of the molecule by the oxygen atom.

The term “phenyl(C₁-C₄)alkyl” refers to a straight or branched chainalkyl group having from one to four carbon atoms attached to a phenylring which chain is attached to the remainder of the molecule. Typicalphenylalkyl groups include benzyl, phenylethyl, phenylpropyl,phenylisopropyl, and phenylbutyl.

The term “—(C₁-C₄)alkylthio” defines a straight or branched alkyl chainhaving one to four carbon atoms attached to the remainder of themolecule by a sulfur atom. Typical —(C₁-C₄)alkylthio groups includemethylthio, ethylthio, propylthio, butylthio and the like.

The term “—(C₃-C₁₄)cycloalkyl” includes groups such as cyclopropyl,cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl,cyclononyl, cyclodecyl, cycloundecyl, cyclododecyl, cyclotridecyl,cyclotetradecyl and the like. The term “—(C₃-C₁₄)cycloalkyl” includesand —(C₃-C₇)cycloalkyl.

The term, “heterocyclic radical”, refers to radicals derived frommonocyclic or polycyclic, saturated or unsaturated, substituted orunsubstituted heterocyclic nuclei having 5 to 14 ring atoms andcontaining from 1 to 3 hetero atoms selected from the group consistingof nitrogen, oxygen or sulfur. Typical heterocyclic radicals arepyridyl, thienyl, fluorenyl, pyrrolyl, furanyl, thiophenyl, pyrazolyl,imidazolyl, phenylimidazolyl, triazolyl, isoxazolyl, oxazolyl,thiazolyl, thiadiazolyl, indolyl, carbazolyl, norharmanyl, azaindolyl,benzofuranyl, dibenzofuranyl, thianaphtheneyl, dibenzothiophenyl,indazolyl, imidazo(1.2-A)pyridinyl, benzotriazolyl, anthranilyl,1,2-benzisoxazolyl, benzoxazolyl, benzothiazolyl, purinyl, pryidinyl,dipyridylyl, phenylpyridinyl, benzylpyridinyl, pyrimidinyl,phenylpyrimidinyl, pyrazinyl, 1,3,5-triazinyl, quinolinyl, phthalazinyl,quinazolinyl, and quinoxalinyl.

The term “carbocyclic radical” refers to radicals derived from asaturated or unsaturated, substituted or unsubstituted 5 to 14 memberedorganic nucleus whose ring forming atoms (other than hydrogen) aresolely carbon atoms. Typical carbocyclic radicals are cycloalkyl,cycloalkenyl, phenyl, naphthyl, norbornanyl, bicycloheptadienyl,tolulyl, xylenyl, indenyl, stilbenyl, terphenylyl, diphenylethylenyl,phenylcyclohexeyl, acenaphthylenyl, and anthracenyl, biphenyl,bibenzylyl and related bibenzylyl homologues represented by the formula(bb),

where n is an integer from 1 to 8.

The term, “non-interfering substituent”, refers to radicals suitable forsubstitution at positions 1, 2, 3, 7 and/or 8 on the tricyclic nucleus(as depicted in Formula III) and radical(s) suitable for substitution onthe heterocyclic radical and carbocyclic radical as defined above.Illustrative non-interfering radicals are hydrogen, —(C₁-C₁₄)alkyl,—(C₂-C₆)alkenyl, —(C₂-C₆)alkynyl, —(C₇-C₁₂)aralkyl, —(C₇-C₁₂)alkaryl,—(C₃-C₈)cycloalkyl, —(C₃-C₈)cycloalkenyl, phenyl, tolulyl, xylenyl,biphenyl, —(C₁-C₆)alkoxy, —(C₂-C₆)alkenyloxy, —(C₂-C₆)alkynyloxy,—(C₁-C₁₂)alkoxyalkyl, —(C₁-C₁₂)alkoxyalkyloxy, —(C₁-C₁₂)alkylcarbonyl,—(C₁-C₁₂)alkylcarbonylamino, —(C₁-C₁₂)alkoxyamino,—(C₁-C₁₂)alkoxyaminocarbonyl, —(C₁-C₁₂)alkylamino, —(C₁-C₆)alkylthio,—(C₁-C₁₂)alkylthiocarbonyl, —(C₁-C₆)alkylsulfinyl,—(C₁-C₆)alkylsulfonyl, —(C₁-C₆)haloalkoxy, —(C₁-C₆)haloalkylsulfonyl,—(C₁-C₆)haloalkyl, —(C₁-C₆)hydroxyalkyl, —(CH₂)_(n)CN, —(CH₂)_(n)NR⁹R¹⁰,—C(O)O(C₁-C₆alkyl), —(CH₂)_(n)O(C₁-C₆ alkyl), benzyloxy, phenoxy,phenylthio; —(CONHSO₂)R¹⁵, where R¹⁵ is —(C₁-C₆)alkyl; —CF₃, naphthyl or—(CH₂)_(s)phenyl where s is 0-5; —CHO, —CF₃, —OCF₃, pyridyl, amino,amidino, halo, carbamyl, carboxyl, carbalkoxy, —(CH₂)_(n)CO₂H, cyano,cyanoguanidinyl, guanidino, hydrazide, hydrazino, hydrazido, hydroxy,hydroxyamino, nitro, phosphono, —SO₃H, thioacetal, thiocarbonyl, furyl,thiophenyl —COR⁹, —CONR⁹R¹⁰, —NR⁹R¹⁰, —NCHCOR⁹, —SO₂R⁹, —OR⁹, —SR⁹,CH₂SO₂R⁹, tetrazolyl or tetrazolyl substituted with —(C₁-C₆)alkyl,phenyl or —(C₁-C₄)alkylphenyl, —(CH₂)_(n)OSi(C₁-C₆)alkyl and(C₁-C₆)alkylcarbonyl; where n is from 1 to 8 and R⁹ and R¹⁰ areindependently hydrogen, —CF₃, phenyl, —(C₁-C₄)alkyl, —(C₁-C₄)alkylphenylor -phenyl (C₁-C₄)alkyl

The term, “acidic group” means an organic group which when attached to atricyclic nucleus, through suitable linking atoms (hereinafter definedas the “acid linker”), acts as a proton donor capable of hydrogenbonding. Illustrative of an acidic group are the following:

where n is 1 to 8, R₈₉ is a metal or —(C₁-C₁₀)alkyl, and R₉₉ is hydrogenor —(C₁-C₁₀)alkyl.

The words, “acid linker” refer to a divalent linking group symbolizedas, —(L_(a))—, which has the function of joining the 5 or 6 position ofthe tricyclic nucleus to an acidic group in the general relationship:

(tricyclic nucleus) —(L_(a))— Acidic Group

The words, “acid linker length”, refer to the number of atoms (excludinghydrogen) in the shortest chain of the linking group —(L_(a))— thatconnects the 5 or 6 position of the tricyclic nucleus with the acidicgroup. The presence of a carbocyclic ring in —(L_(a))— counts as thenumber of atoms approximately equivalent to the calculated diameter ofthe carbocyclic ring. Thus, a benzene or cyclohexane ring in the acidlinker counts as 2 atoms in calculating the length of —(L_(a))—.Illustrative acid linker groups are;

where t is 1 to 5, Q is selected from the group —(CH₂)—, —O—, —NH—, and—S—, and R₈₄ and R₈₅ are each independently selected from hydrogen,—(C₁-C₁₀)alkyl, aryl, —(C₁-C₁₀)alkaryl, —(C₁-C₁₀)aralkyl, carboxy,carbalkoxy, and halo, when t is one (1), groups (a), (b), (c) and (d)have acid linker lengths of 3, 3, 2, and 2, respectively.

The skilled artisan will appreciate that the position of the double bondin the center 5-membered ring depends on the position of the nitrogenatom as depicted below.

The salts of the above tricyclics are an additional aspect of theinvention. In those instances where the compounds of the inventionpossess acidic functional groups various salts may be formed which aremore water soluble and physiologically suitable than the parentcompound. Representative pharmaceutically acceptable salts include butare not limited to the alkali and alkaline earth salts such as lithium,sodium, potassium, calcium, magnesium, aluminum and the like. Salts areconveniently prepared from the free acid by treating the acid insolution with a base or by exposing the acid to an ion exchange resin.

Included within the definition of pharmaceutically acceptable salts arethe relatively non-toxic, inorganic and organic base addition salts ofcompounds of the present invention, for example, ammonium, quaternaryammonium, and amine cations, derived from nitrogenous bases ofsufficient basicity to form salts with the compounds of this invention(see, for example, S. M. Berge, et al., “Pharmaceutical Salts,” J. Phar.Sci., 66: 1-19 (1977)).

Compounds of the invention may have chiral centers and exist inoptically active forms. R- and S-isomers and racemic mixtures arecontemplated by this invention. A particular stereoisomer may beprepared by known methods using stereospecific reactions with startingmaterials containing asymmetric centers already resolved or,alternatively, by subsequent resolution of mixtures of stereoisomersusing known methods.

Prodrugs are derivatives of the compounds of the invention which havechemically or metabolically cleavable groups and become by solvolysis orunder physiological conditions the compounds of the invention which arepharmaceutically active in vivo. Derivatives of the compounds of thisinvention have activity in both their acid and base derivative forms,but the acid derivative form often offers advantages of solubility,tissue compatibility, or delayed release in a mammalian organism (see,Bundgard, H., Design of Prodrugs, pp. 7-9, 21-24, Elsevier, Amsterdam1985). Prodrugs include acid derivatives, such as, esters prepared byreaction of the parent acidic compound with a suitable alcohol, oramides prepared by reaction of the parent acid compound with a suitableamine. Simple aliphatic esters (e.g., methyl, ethyl, propyl, isopropyl,butyl, sec-butyl, tert-butyl) or aromatic esters derived from acidicgroups pendent on the compounds of this invention are preferredprodrugs. Other preferred esters include morpholinoethyloxy,diethylglycolamide and diethylaminocarbonylmethoxy. In some cases it isdesirable to prepare double ester type prodrugs such as (acyloxy) alkylesters or ((alkoxycarbonyl)oxy)alkyl esters.

The term “acid protecting group” is used herein as it is frequently usedin synthetic organic chemistry, to refer to a group which will preventan acid group from participating in a reaction carried out on some otherfunctional group in the molecule, but which can be removed when it isdesired to do so. Such groups are discussed by T. W. Greene in chapter 5of Protective Groups in Organic Synthesis, John Wiley and Sons, NewYork, 1981, incorporated herein by reference in its entirety. Examplesof acid protecting groups include ester or amide derivatives of the acidgroup, such as, methyl, methoxymethyl, methyl-thiomethyl,tetrahydropyranyl, methoxyethoxymethyl, benzyloxymethyl, phenyl, aryl,ethyl, 2,2,2-trichloroethyl, 2-methylthioethyl, t-butyl, cyclopentyl,triphenylmethyl, diphenylmethyl, benzyl, trimethylsilyl, N,N-dimethyl,pyrrolidinyl, piperidinyl, or o-nitroanilide. A preferredacid-protecting group is methyl.

PREFERRED COMPOUNDS OF THE INVENTION

Preferred Subgroups of Compounds of Formula (I)

A preferred subclass of compounds of formula (I) are those wherein R²¹is selected from the group hydrogen, halo, —(C₁-C₃)alkyl,—(C₃-C₄)cycloalkyl, —(C₃-C₄)cycloalkenyl, —O(C₁-C₂)alkyl and—S(C₁-C₂)alkyl.

Another preferred subclass of compounds of formula (I) are those whereinfor R^(2′), —(L)— is an alkyl chain of 1 or 2 carbon atoms.

Another preferred subclass of compounds of formula (I) are those whereinfor R²⁰, group R⁸⁰ is selected from the group consisting of cycloalkyl,cycloalkenyl, phenyl, naphthyl, norbornanyl, bicycloheptadienyl,tolulyl, xylenyl, indenyl, stilbenyl, terphenylyl, diphenylethylenyl,phenyl-cyclohexenyl, acenaphthylenyl, and anthracenyl, biphenyl,bibenzylyl and related bibenzylyl homologues represented by the formulabb,

where n is a number from 1 to 8. Particularly preferred are compoundswherein R²⁰ is selected from the group consisting of

where R¹⁷ is a radical independently selected from halo, —(C₁-C₁₀)alkyl,—(C₁-C₁₀)alkoxy, —S—(C₁-C₁₀ alkyl), and —(C₁-C₁₀)haloalkyl, and w is anumber from 0 to 5.

Another preferred subclass of compounds of formula (I) are those whereinR^(2′) is a substituent having an acid linker with an acid linker lengthof 2 or 3. Most preferred are compounds where the acidic group isselected from

where n is 1 to 8, R₈₉ is a metal or —(C₁-C₁₀)alkyl, and R₉₉ is hydrogenor —(C₁-C₁₀)alkyl. Particularly preferred are compounds wherein theacidic group of R^(2′) is selected from;

or salt, and prodrug (e.g., ester) derivatives thereof.

Another preferred subclass of compounds of formula (I) are those whereinR^(2′) is a substituent having an acid linker with an acid linker lengthof 2 or 3 and the acid linker group, —(L_(a))—, for R^(2′) is selectedfrom a group represented by the formula;

where Q is selected from the group —(CH₂)—, —O—, —NH—, and —S—, and R₈₄and R₈₅ are each independently selected from hydrogen, —(C₁-C₁₀)alkyl,aryl, —(C₁-C₁₀)alkylaryl, -aryl(C₁-C₁₀)alkyl, carboxy, carbalkoxy, andhalo. Most preferred are compounds where the acid linker, —(L_(a))—, forR^(2′) is selected from the specific groups;

Another preferred subclass of compounds of formula (I) are those whereinR^(2′) is a substituent having an acid linker with an acid linker lengthof 3 to 8 atoms and the acid linker group, —(L_(a))—, for R^(2′) isselected from;

where r is a number from 1 to 7, s is 0 or 1, and Q is selected from thegroup —(CH₂)—, —O—, —NH—, and —S—, and R₈₄ and R₈₅ are eachindependently selected from hydrogen, —(C₁-C₁₀)alkyl, aryl,—(C₁-C₁₀)alkylaryl, -aryl(C₁-C₁₀)alkyl, carboxy, carbalkoxy, and halo.

Most preferred are compounds where the acid linker, —(L_(a))—, forR^(2′) is selected from the specific groups;

wherein R₈₄ and R₈₅ are each independently selected from hydrogen,—(C₁-C₁₀)alkyl, aryl, —(C₁-C₁₀)alkaryl, —(C₁-C₁₀)aralkyl, carboxy,carbalkoxy, and halo.

Another preferred subclass of compounds of formula (I) are those whereinR^(3′) is selected from hydrogen and non-interfering substituents, withthe non-interfering substituents being selected from the groupconsisting of hydrogen, —(C₁-C₆)alkyl, —(C₂-C₆)alkenyl, —(C₂-C₆)alkynyl,—(C₇-C₁₂)aralkyl, —(C₇-C₁₂)alkaryl, —(C₃-C₈)cycloalkyl,—(C₃-C₈)cycloalkenyl, phenyl, tolulyl, xylenyl, biphenyl,—(C₁-C₆)alkoxy, —(C₂-C₆)alkenyloxy —(C₂-C₆)alkynyloxy,—(C₁-C₁₂)alkoxyalkyl, —(C₁-C₁₂)alkoxyalkyloxy, —(C₁-C₁₂)alkylcarbonyl,—(C₁-C₁₂)alkylcarbonylamino, —(C₁-C₁₂)alkoxyamino,—(C₁-C₁₂)alkoxyaminocarbonyl, —(C₁-C₁₂)alkylamino, —(C₁-C₆)alkylthio,—(C₁-C₁₂)alkylthiocarbonyl, —(C₁-C₆)alkylsulfinyl,—(C₁-C₆)alkylsulfonyl, —(C₁-C₆)haloalkoxy, —(C₁-C₆)haloalkylsulfonyl,—(C₁-C₆)haloalkyl, —(C₁-C₆)hydroxyalkyl, —C(O)O(C₁-C₆ alkyl),—(CH₂)_(n)O(C₁-C₆ alkyl), benzyloxy, halo, phenylthio; phenylsubstituted with —(C₁-C₆)alkyl, halo, or —CF₃; furyl, thiophenyl,—(CH₂)_(n)CN, —(CH₂)_(n)R⁸ where R⁸ is H, —CONH₂, —NR⁹R¹⁰, —CN or phenylwhere R⁹ and R¹⁰ are independently —(C₁-C₄)alkyl or -phenyl(C₁-C₄);—CHO, amino, amidino, carbamyl, carboxyl, carbalkoxy, —(CH₂)_(n)CO₂H,cyano, cyanoguanidinyl, guanidino, hydrazide, hydrazino, hydrazido,hydroxy, hydroxyamino, nitro, phosphono, —SO₃H, thioacetal,thiocarbonyl, and —(C₁-C₆)alkylcarbonyl; where n is from 1 to 8.

Another preferred group of substituents for R^(3′) include H,—O(C₁-C₄)alkyl, halo, —(C₁-C₆)alkyl, phenyl, —(C₁-C₄)alkylphenyl; phenylsubstituted with —(C₁-C₆)alkyl, halo, or —CF₃; —CH₂OSi(C₁-C₆)alkyl,furyl, thiophenyl, —(C₁-C₆)hydroxyalkyl; or —(CH₂)_(n)R⁸ where R⁸ is H,—CONH₂, —NR⁹R¹⁰, —CN or phenyl where R⁹ and R¹⁰ are independently—(C₁-C₄)alkyl or -phenyl(C₁-C₄)alkyl and n is 1 to 8;

Yet another preferred group include H, —O(C₁-C₄)alkyl, halo,—(C₁-C₆)alkyl, phenyl, —(C₁-C₄)alkylphenyl; phenyl substituted with—(C₁-C₆)alkyl, halo or —CF₃; —CH₂OSi(C₁-C₆)alkyl, furyl, thiophenyl,—(C₁-C₆)hydroxyalkyl; or —(CH₂)_(n)R⁸ where R⁸ is H, —NR⁹R¹⁰, —CN orphenyl where R⁹ and R¹⁰ are independently —(C₁-C₄)alkyl or-phenyl(C₁-C₄)alkyl and n is 1 to 8.

Preferred compounds of the invention are those having the generalformula (II)

wherein;

R¹ is —NHNH₂, or —NH₂;

R² is selected from the group consisting of —OH and —O(CH₂)_(n)R⁵ where

R⁵ is H, —CO₂H, —CO₂(C₁-C₄ alkyl);

 where R⁶ and R⁷ are each independently —OH or —O(C₁-C₄)alkyl; —SO₃H,—SO₃(C1-C4 alkyl), tetrazolyl, —CN, —NH₂, —NHSO₂R¹⁵; —CONHSO₂R¹⁵, whereR¹⁵ is —(C₁-C₆)alkyl or —CF₃, phenyl or phenyl substituted with —CO₂H or—CO₂(C₁-C₄)alkyl where m is 1-3;

R³ is H, —O(C₁-C₄)alkyl, halo, —(C₁-C₆)alkyl, phenyl,—(C₁-C₄)alkylphenyl; phenyl substituted with —(C₁-C₆)alkyl, halo, or—CF₃; —CH₂OSi(C₁-C₆)alkyl, furyl, thiophenyl, —(C₁-C₆)hydroxyalkyl; or—(CH₂)_(n)R⁸ where R⁸ is H, —CONH₂, —NR⁹R¹⁰, —CN or phenyl where R⁹ andR¹⁰ are independently —(C₁-C₄)alkyl or -phenyl(C₁-C₄)alkyl and n is 1 to8;

R⁴ is H, —(C₅-C₁₄)alkyl, —(C₃-C₁₄)cycloalkyl, pyridyl, phenyl or phenylsubstituted with —(C₁-C₆)alkyl, halo, —CF₃, —OCF₃, —(C₁-C₄)alkoxy, —CN,—(C₁-C₄)alkylthio, phenyl (C1-C₄)alkyl, —(C₁-C₄)alkylphenyl, phenyl,phenoxy or naphthyl;

Z is cyclohexenyl, or phenyl;

or a pharmaceutically acceptable racemate, solvate, tautomer, opticalisomer, prodrug derivative or salt, thereof.

Another preferred genus of compounds of the invention are those havingthe general formula (XXX)

wherein:

R¹ is —NHNH₂, or —NH₂;

R² is selected from the group consisting of —OH and —O(CH₂)_(m)R⁵ where

R⁵ is H, —CO₂H, —CO₂(C₁-C₄ alkyl);

 where R⁶ and R⁷ are each independently —OH or —O(C₁-C₄)alkyl; —SO₃H,—SO₃(C1-C4 alkyl), tetrazolyl, —CN, —NH₂, —NHSO₂R¹⁵; —CONHSO₂R¹⁵, whereR¹⁵ is —(C₁-C₆)alkyl or —CF₃, phenyl or phenyl substituted with —CO₂H or—CO₂(C₁-C₄)alkyl where m is 1-3;

R³ is H, —O(C₁-C₄)alkyl, halo, —(C₁-C₆)alkyl, phenyl,—(C₁-C₄)alkylphenyl; phenyl substituted with —(C₁-C₆)alkyl, halo, or—CF₃; —CH₂OSi(C₁-C₆)alkyl, furyl, thiophenyl, —(C₁-C₆)hydroxyalkyl; or—(CH₂)_(n)R⁸ where R⁸ is H, —CONH₂, —NR⁹R¹⁰, —CN or phenyl where R⁹ andR¹⁰ are independently —(C₁-C₄)alkyl or -phenyl (C₁-C₄)alkyl and n is 1to 8;

R⁴ is H, —(C₅-C₁₄)alkyl, —(C₃-C₁₄)cycloalkyl, pyridyl, phenyl or phenylsubstituted with —(C₁-C₆)alkyl, halo, —CF₃, —OCF₃, —(C₁-C₄)alkoxy, —CN,—(C₁-C₄)alkylthio, phenyl(C1-C₄)alkyl, —(C₁-C₄)alkylphenyl, phenyl,phenoxy or naphthyl;

A is phenyl or pyridyl wherein the nitrogen is at the 5-, 6-, 7- or8-position;

Z is cyclohexenyl, phenyl, pyridyl wherein the nitrogen is at the 1-, 2-or 3-position or a 6-membered heterocyclic ring having one heteroatomselected from the group consisting of sulfur or oxygen at the 1-, 2- or3-position and nitrogen at the 1-, 2-, 3- or 4-position, or

wherein one carbon on the heterocyclic ring is optionally substitutedwith ═O or a pharmaceutically acceptable racemate, solvate, tautomer,optical isomer, prodrug derivative or salt thereof;

provided that one of A or Z is a heterocyclic ring.

Preferred substituents of compounds of formula I and II include thefollowing:

(a) R¹ is —NH₂, —NHNH₂;

(b) R¹ is —NH₂;

(c) R² is —O(CH₂)_(m)R⁵ where R⁵ is —H, —CO₂H or

where R⁶ and R⁷ are —OH;

(d) R² is —OH;

(e) R² is —O(CH₂)_(m)R⁵ where R⁵ is —H, —CO₂(C₁-C₄ alkyl), phenyl orphenyl substituted with —CO₂H or —CO₂(C₁-C₄ alkyl);

(f) R² is —O(CH₂)_(m)R⁵ where R⁵ is

 and R⁶ and R⁷ are —O(C₁-C₄ alkyl), or when one of R⁶ and R⁷ is —O(C₁-C₄alkyl), the other is —OH;

(g) R³ is —H, —O(C₁-C₄ alkyl) or —(CH₂)_(n)R⁸ where

n=2 and

R⁸ is H or phenyl;

(h) R³ is H, or —O(C₁-C₄ alkyl);

(i) R³ is —(CH₂)_(n)R⁸ where R⁸ is —NR⁹R¹⁰,

 or —CN where R⁹ and R¹⁰ are —(C₁-C₄)alkyl;

(j) R⁴ is phenyl;

(k) R⁴ is phenyl substituted at the 2- and 6-position of the phenyl ringwith —(C₁-C₄)alkyl, (C₁-C₄)alkoxy, halo or phenyl;

(l) R⁴ is phenyl substituted at the 2- or 6-position of the phenyl ringwith —(C₁-C₄)alkyl, —(C₁-C₄)alkoxy, halo or phenyl;

(m) R⁴ is phenyl substituted at the 3- or 5-position of the phenyl ringwith —(C₁-C₄)alkyl, —(C₁-C₄)alkoxy, halo or phenyl;

(n) R⁴ is —(C₆-C₁₄)alkyl or —(C₆-C₁₄)cycloalkyl;

(o) Z is cyclohexenyl;

(p) R⁵ is H, —CO₂H, —CO₂(C₁-C₄ alkyl),

 —NHSO₂(C₁-C₆)alkyl, —CONHSO₂(C₁-C₆)alkyl, tetrazolyl, phenyl, or phenylsubstituted with —CO₂H or —CO₂(C₁-C₄ alkyl) where R⁶ and R⁷ are eachindependently —OH or —O(C₁-C₄ alkyl) and m is 1-3;

(q) R⁵ is H, —CO₂H, —CO₂(C₁-C₄ alkyl),

 phenyl, or phenyl substituted with —CO₂H or —CO₂(C₁-C₄ alkyl) where R⁶and R⁷ are each independently —OH or —O(C₁-C₄ alkyl) and m is 1-3;

(r) Z is cyclohexenyl;

(s) Z is phenyl;

(t) R⁵ is H, —CO₂H, —CO₂(C₁-C₄ alkyl);

 where R⁶ and R⁷ are each independently —OH or —O(C₁-C₄)alkyl; —SO₃H,—SO₃(C1-C4 alkyl), tetrazolyl, —CN, —NH₂, —NHSO₂R¹⁵; —CONHSO₂R¹⁵, whereR¹⁵ is —(C₁-C₆)alkyl or —CF₃, phenyl or phenyl substituted with —CO₂H or—CO₂(C₁-C₄)alkyl where m is 1-3;

(u) R³ is H, —O(C₁-C₄)alkyl, halo, —(C₁-C₆)alkyl, phenyl,—(C₁-C₄)alkylphenyl; phenyl substituted with —(C₁-C₆)alkyl, halo, or—CF₃; —CH₂OSi(C₁-C₆)alkyl, furyl, thiophenyl, —(C₁-C₆)hydroxyalkyl—(C₁-C₆)alkoxy(C₁-C₆)alkyl, —(C₁-C₆)alkoxy(C₁-C₆)alkenyl,—(C₁-C₆)alkoxy(C₁-C₆)alkyl, —(C₁-C₆)alkoxy, —(C₁-C₆)alkenyl; or—(CH₂)_(n)R⁸ where R⁸ is H, —CONH₂, —NR⁹R¹⁰, —CN or phenyl where R⁹ andR¹⁰ are independently hydrogen, —CF₃, phenyl, —(C₁-C₄)alkyl,—(C₁-C₄)alkylphenyl or -phenyl (C₁-C₄)alkyl and n is 1 to 8.

(v) Z is cyclohexenyl, phenyl, pyridyl wherein the nitrogen is at the1-, 2- or 3-position or a 6-membered heterocyclic ring having oneheteroatom selected from the group consisting of sulfur or oxygen at the1-, 2- or 3-position and nitrogen at the 1-, 2-, 3- or 4-positionwherein one carbon on the heterocyclic ring is optionally substitutedwith

(w) Z is cyclohexenyl or phenyl; or a pharmaceutically acceptable salt,racemate or optical isomer thereof; provided that when R³ is H, R⁴ isphenyl, m is 1 or 2 and R² is substituted at the 6 position, R⁵ cannotbe H; and when R¹ is NHNH₂, R⁸ cannot be

(x) A is phenyl; and

(y) A is pyridyl wherein the nitrogen is at the 5-, 6-, 7- or8-position.

Further typical examples of compounds of formula I which are useful inthe present invention include:

5-hydroxy-7-(5-cyanopentyl)-9-methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

6-(2-carboxyethoxy)-8-methoxy-9-cyclopentylmethyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

5-(3-phenylpropoxy)-7-ethoxy-9-butyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

6-(2-phosphonoethoxy)-8-phenylhexyl-9-(cyclotetradecyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

5-ethoxycarbonylmethoxy-8-(5-carbamoylpent-1-yl)-9-(3,5-dipropylphenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

6-(diethoxyphosphonyl)methoxy-9-(4-methoxyphenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

6-(3-(4-carboxyphenyl)prop-1-yl)oxy-8-heptyl-9-(3-phenylethyl)phenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

6-(2-propoxycarbonyl)ethoxy-8-(3-(N,N-dimethylamino)prop-1-yl)-9-methyl-1,2,3,4-tetrahydrocarbazole-4-caboxamide;

5-(di-t-butoxyphosphonyl)methoxy-7-nonyl-9-(3-propylthiophenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

5-(2-(3-methoxycarbonyl)phenyl)ethoxy-7-pentyl-9-methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

6-hydroxy-8-(4-(N,N-diethylamino)but-1-yl)-9-(3-fluorophenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

6-(2-phenylethoxy)-9-(2-phenylphenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

(S)-6-((3-carboxy)prop-1-yl)oxy-8-propoxy-9-(7-cyanohept-1-yl)-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

5-(propoxycarbonyl)methoxy-9-cyclopentylmethyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

(S)-5-(2-ethoxyphosphonyl)ethoxy-(4-carbamoyl)but-1-yl-9-(3-methylthiophenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

5-(3-(ethoxycarbonyl)prop-1-yl)oxy-7-propoxy-9-(cyclononyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

5-(3-phosphonoprop-1-yl)oxy-8-heptyl-9-(4-chlorophenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

6-methoxycarbonylmethoxy-7-(5-cyanopent-1-yl)-9-tridecylmethyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

(S)-6-propoxycarbonylmethoxy-9-((3-isopropyl-5-methoxy)phenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

(S)-6-dimethoxyphosphonoethoxy-8-(6-(N,N-dimethylamino)hex-1-yl-9-(3,5-dimethoxyphenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

5-hydroxy-7-(5-cyanopentyl)-9-methylcarbazole-4-carboxamide;

6-(2-carboxyethoxy)-8-methoxy-9-cyclopentylmethylcarbazole-4-carboxamide;

5-(3-phenylprop-1-yl)oxy-7-ethoxy-9-butylcarbazole-4-carboxamide;

6-(2-phosphonoethoxy)-8-phenylhexyl-9-(cyclotetradecyl)methylcarbazole-4-carboxamide;

5-ethoxycarbonylmethoxy-8-(5-carbamoylpent-1-yl)-9-(3,5-dipropylphenyl)methylcarbazole-4-carboxamide;

6-(diethoxyphosphonyl)methoxy-9-(4-methoxyphenyl)methylcarbazole-4-carboxamide;

6-(3-(4-carboxyphenyl)prop-1-yl)oxy-8-heptyl-9-(3-phenylethyl)phenyl)methylcarbazole-4-carboxamide;

6-(2-propoxycarbonyl)ethoxy-8-(3-(N,N-dimethylamino)prop-1-yl)-9-methylcarbazole-4-carboxamide;

5-((di-t-butoxyphosphonyl)methoxy-7-nonyl-9-(3-propylthiopheny)methylcarbazole-4-carboxamide;

(S)-5-(2-(3-methoxycarbonyl)phenyl)ethoxy-7-pentyl-9-methylcarbazole-4-carboxamide;

(S)-6-hydroxy-8-(4-(N,N-diethylamino)but-1-yl)-9-(3-fluorophenyl)methylcarbazole-4-carboxamide;

(S)-6-(2-phenylethoxy)-9-((2-phenyl)phenyl)methylcarbazole-4-carboxamide;

6-((3-carboxy)prop-1-yl)oxy-8-propoxy-9-(7-cyanohept-1-yl)-carbazole-4-carboxamide;

5-(propoxycarbonyl)methoxy-9-cyclopentylmethylcarbazole-4-carboxamide;

5-(2-ethoxyphosphonyl)ethoxy-(4-carbamoyl)but-1-yl-9-(3-methylthiophenyl)methylcarbazole-4-carboxamide;

5-((3-ethoxycarbonyl)prop-1-yl)oxy-7-propoxy-9-(cyclononyl)methylcarbazole-4-carboxamide;

(S)-5-(3-phosphonoprop-1-yl)oxy-8-heptyl-9-(4-chlorophenyl)methylcarbazole-4-carboxamide;

(S)-6-methoxycarbonylmethoxy-7-(5-cyanopent-1-yl)-9-tridecylmethylcarbazole-4-carboxamide;

6-(propoxycarbonyl)methoxy-9-(3-isopropyl-5-methoxy)phenyl)methylcarbazole-4-carboxamide;

6-dimethoxyphosphonoethoxy-8-(6-(N,N-dimethylamino)hex-1-yl-9-(3,5-dimethoxyphenyl)methyl-carbazole-4-carboxamide;

5-hydroxy-7-(5-cyanopentyl)-9-methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

6-(2-carboxyethoxy-8-methoxy-9-cyclopentyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

5-(3-phenylprop-1-yl)oxy-7-ethoxy-9-butyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

6-(2-phosphonoethoxy)-8-phenylhexyl-9-(cyclotetradecyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

5-ethoxycarbonylmethoxy-8-(5-carbamoylpent-1-yl)-9-(3,5-dipropylphenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

(S)-6-(diethoxyphosphonyl)methoxy-9-(4-methoxyphenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

6-(3-(4-carboxyphenyl)prop-1-yl)oxy-8-heptyl-9-((3-phenylethyl)phenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

(S)-6-(2-propoxycarbonyl)ethoxy-8-(3-(N,N-dimethylamino)prop-1-yl)-9-methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

5-(di-t-butoxyphosphonyl)methoxy-7-nonyl-9-(3-propylthiopheny)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

(S)-5-(2-(3-methoxycarbonyl)phenyl)ethoxy-7-pentyl-9-methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

6-hydroxy-8-(4-(N,N-diethylamino)but-1-yl)-9-(3-fluorophenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

(S)-6-(2-phenylethoxy)-9-(2-phenylphenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

6-((3-carboxy)prop-1-yl)oxy-8-propoxy-9-(7-cyanohept-1-yl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

5-(propoxycarbonyl)methoxy-9-cyclopentylmethyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

5-(2-ethoxyphosphonyl)ethoxy-(4-carbamoyl)but-1-yl-9-(3-methylthiophenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

5-((3-(ethoxycarbonyl)prop-1-yl)oxy-7-propoxy-9-(cyclononyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

5-(3-phosphonoprop-1-yl)oxy-8-heptyl-9-(4-chlorophenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

6-methoxycarbonylmethoxy-7-(5-cyanopent-1-yl)-9-tridecyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

6-propoxycarbonylmethoxy-9-(3-isopropyl-5-methoxyphenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

6-dimethoxyphosphonoethoxy-8-(6-(N,N-dimethylamino)hex-1-yl-9-(3,5-dimethoxyphenyl)methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylicacid hydrazide;

5-hydroxy-7-(5-cyanopentyl)-9-methylcarbazole-4-carboxylic acidhydrazide;

6-(2-carboxyethyloxy)-8-methoxy-9-cyclopentylmethyl-carbazole-4-carboxylicacid hydrazide;

5-(3-phenylprop-1-yl)oxy-7-ethoxy-9-butylcarbazole-4-carboxylic acidhydrazide;

6-(2-phosphonoethoxy-8-phenylhexyl-9-(cyclotetradecyl)methylcarbazole-4-carboxylicacid hydrazide;

5-ethoxycarbonylmethoxy-8-(5-carbamoylpent-1-yl)-9-(3,5-dipropylphenyl)methylcarbazole-4-carboxylicacid hydrazide;

6-(diethoxyphosphonyl)methoxy-9-(4-methoxyphenyl)methylcarbazole-4-carboxylicacid hydrazide;

6-(3-(4-carboxyphenyl)prop-1-yl)oxy-8-heptyl-9-((3-phenylethyl)phenyl)methylcarbazole-4-carboxylicacid hydrazide;

6-(2-propoxycarbonyl)ethoxy-8-(3-(N,N-dimethylamino)prop-1-yl)-9-methylcarbazole-4-carboxylicacid hydrazide;

5-(di-t-butoxyphosphonyl)methoxy-7-nonyl-9-(3-propylthiophenyl)methylcarbazole-4-carboxylicacid hydrazide;

5-(2-(3-methoxycarbonyl)phenyl)ethoxy-7-pentyl-9-methylcarbazole-4-carboxylicacid hydrazide;

6-hydroxy-8-(4-(N,N-diethylamino)but-1-yl)-9-(3-fluorophenyl)methylcarbazole-4-carbazole;

6-(2-phenylethoxy)-9-(2-phenylphenyl)methylcarbazole-4-carboxylic acidhydrazide;

6-((3-carboxy)prop-1-yl)oxy-8-propoxy-9-(7-cyanohept-1-yl)-carbazole-4-carboxylicacid hydrazide;

(S)-5-(propoxycarbonyl)methoxy-9-cyclopentylmethylcarbazole-4-carboxylicacid hydrazide;

5-(2-ethoxyphosphonyl)ethoxy-(4-carbamoyl)but-1-yl-9-(3-methylthiophenyl)methylcarbazole-4-carboxylicacid hydrazide;

(S)-5-(3-(ethoxycarbonyl)prop-1-yl)oxy-7-propoxy-9-(cyclononyl)methylcarbazole-4-carboxylicacid hydrazide;

5-(3-phosphonoprop-1-yl)oxy-8-heptyl-9-(4-chlorophenyl)methylcarbazole-4-carboxylicacid hydrazide;

6-methoxycarbonylmethoxy-7-(5-cyanopent-1-yl)-9-tridecylcarbazole-4-carboxylicacid hydrazide;

6-propoxycarbonylmethoxy-9-((3-isopropyl-5-methoxy)phenyl)methylcarbazole-4-carboxylicacid hydrazide;

(S)-6-dimethoxyphosphonoethoxy-8-(6-(N,N-dimethylamino)hex-1-yl-9-(3,5-dimethoxyphenyl)methylcarbazole-4-carboxylicacid hydrazide;

9-[(phenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-phenoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-phenoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-phenoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-bromophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-bromophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-bromophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-iodophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-iodophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-iodophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-acetamidophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-acetamidophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-acetamidophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-carbamoylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-carbamoylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-carbamoylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-methylsulfonylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylsulfonylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-ethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-ethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-ethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(cyclobutyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(cyclopentyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(cyclohexyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-methoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-methoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-methoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-ethoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-ethoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-ethoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-trifluoromethoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-difluoromethoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-pyridyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-pyridyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-pyridyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-furyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-furyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-thienyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-thienyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-benzylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-benzylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-benzylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-benzoylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-benzoylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-benzoylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-benzyloxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-benzyloxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-benzyloxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-phenylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-phenylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-phenylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(1-naphthyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-naphthyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2,3-difluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2,4-difluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2,5-difluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2,6-difluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3,4-difluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3,5-difluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2,3,4-trifluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2,3-dichlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2,4-dichlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2,5-dichlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2,6-dichlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3,4-dichlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3,5-dichlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2,3-dimethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2,4-dimethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2,5dimethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2,6-dimethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3,4-dimethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3,5-dimethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2,4,6-trimethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-bis(trifluoromethyl)phenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-bis(trifluoromethyl)phenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-4-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[3-(4-fluorophenoxy)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-fluoro-3-methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromo-2-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxy-3-methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylthiophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methyl-1-naphthylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(1-tetrazolylmethyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(5-methyl-1-tetrazolylmethyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-benzyl-1-tetrazolylmethyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(phenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-phenoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-chlorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-iodophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-acetamidophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-carbamoylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylsulfonylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(cyclopentyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-methoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-difluoromethoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-pyridyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-pyridyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-furyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-furyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-thienyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-thienyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-benzylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzoylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-naphthyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2,3-difluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-2-methyl-8-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dichlorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dichlorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dimethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dimethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dimethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dimethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dimethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dimethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trimethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-bis(trifluoromethyl)phenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-bis(trifluoromethyl)phenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-4-trifluoromethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-(2-fluorophenoxy)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromo-2-fluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxy-3-methylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylthiophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methyl-1-naphthylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(1-tetrazolylmethyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-methyl-1-tetrazolylmethyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-benzyl-1-tetrazolylmethyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(phenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-phenoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-chlorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-iodophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-acetamidophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-carbamoylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylsulfonylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid,

9-[(4-trifluoromethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(cyclobutyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(cyclopentyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(cyclohexyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-methoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-difluoromethoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-pyridyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-pyridyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-furyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-furyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-thienyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-thienyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-benzylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzoylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-naphthyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2,3-difluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dichlorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dichlorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dimethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dimethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dimethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dimethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dimethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dimethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trimethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-bis(trifluoromethyl)phenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-bis(trifluoromethyl)phenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-4-trifluoromethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromo-2-fluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxy-3-methylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylthiophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methyl-1-naphthylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(1-tetrazolylmethyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(5-methyl-1-tetrazolylmethyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-benzyl-1-tetrazolylmethyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(phenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-phenoxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenoxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-chlorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-iodophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-acetamidophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-carbamoylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylsulfonylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(cyclopentyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-methoxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methoxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethoxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethoxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-difluoromethoxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-pyridyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-pyridyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-furyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-furyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-thienyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-thienyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-benzylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzoylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-naphthyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2,3-difluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dichlorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dichlorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dimethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dimethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dimethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dimethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dimethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dimethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trimethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-bis(trifluoromethyl)phenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-bis(trifluoromethyl)phenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-4-trifluoromethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromo-2-fluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl)oxyaceticacid;

9-[(3-chloro-4-methylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methoxyphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxy-3-methylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylthiophenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methyl-1-naphthylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(1-tetrazolylmethyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-methyl-1-tetrazolylmethyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-benzyl-1-tetrazolylmethyl]-2-propyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(phenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-phenoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-chlorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-iodophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-acetamidophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-carbamoylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylsulfonylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopentyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-difluoromethoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-pyridyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-pyridyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-furyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-furyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-thienyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-thienyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzoylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-naphthyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-difluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dichlorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dichlorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dimethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dimethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dimethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dimethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dimethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dimethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trimethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-bis(trifluoromethyl)phenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-bis(trifluoromethyl)phenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-4-trifluoromethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromo-2-fluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxy-3-methylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylthiophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methyl-1-naphthylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-tetrazolylmethyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-methyl-1-tetrazolylmethyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-benzyl-1-tetrazolylmethyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(phenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-phenoxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenoxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-chlorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-iodophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-acetamidophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-carbamoylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylsulfonylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopentyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methoxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methoxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethoxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethoxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-difluoromethoxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-pyridyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-pyridyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-furyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-furyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-thienyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-thienyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-benzylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzoylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-naphthyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-difluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dichlorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dichlorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dimethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dimethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dimethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dimethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dimethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dimethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trimethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-bis(trifluoromethyl)phenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-bis(trifluoromethyl)phenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-4-trifluoromethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromo-2-fluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methoxyphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxy-3-methylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylthiophenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methyl-1-naphthylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-tetrazolylmethyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-methyl-1-tetrazolylmethyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-benzyl-1-tetrazolylmethyl]-2-n-butyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenoxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenoxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-chlorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-iodophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-acetamidophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-carbamoylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylsulfonylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopentyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methoxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methoxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethoxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethoxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-difluoromethoxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-pyridyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-pyridyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-furyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-furyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-thienyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-thienyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzoylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-naphthyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-difluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;9-[(2,5-difluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dichlorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dichlorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dimethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dimethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dimethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dimethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dimethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dimethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trimethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-bis(trifluoromethyl)phenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-bis(trifluoromethyl)phenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-4-trifluoromethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromo-2-fluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methoxyphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxy-3-methylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylthiophenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methyl-1-naphthylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-tetrazolylmethyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-methyl-1-tetrazolylmethyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-benzyl-1-tetrazolylmethyl]-2-n-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(phenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenoxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenoxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-chlorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-iodophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-acetamidophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-carbamoylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylsulfonylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopentyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methoxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methoxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethoxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethoxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-difluoromethoxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-pyridyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-pyridyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-furyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-furyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-thienyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-thienyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzoylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;,

9-[(1-naphthyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-naphthyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-difluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dichlorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dichlorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dimethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dimethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dimethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dimethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dimethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dimethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trimethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-bis(trifluoromethyl)phenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-bis(trifluoromethyl)phenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-4-trifluoromethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromo-2-fluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methoxyphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxy-3-methylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylthiophenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methyl-1-naphthylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-tetrazolylmethyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-methyl-1-tetrazolylmethyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-benzyl-1-tetrazolylmethyl]-2-trifluoromethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(phenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-phenoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-chlorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-iodophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-acetamidophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-carbamoylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylsulfonylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(cyclopentyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-methoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid

9-[(4-methoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-trifluoromethoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-difluoromethoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-pyridyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(4-pyridyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-furyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-furyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-thienyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(3-thienyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-benzylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzoylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-naphthyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2,3-difluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dichlorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dichlorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dimethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dimethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dimethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dimethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dimethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dimethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trimethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-bis(trifluoromethyl)phenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-bis(trifluoromethyl)phenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-4-trifluoromethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromo-2-fluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxy-3-methylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylthiophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methyl-1-naphthylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(1-tetrazolylmethyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-methyl-1-tetrazolylmethyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-benzyl-1-tetrazolylmethyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(phenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenoxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenoxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-chlorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-iodophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-acetamidophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-carbamoylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylsulfonylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopentyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methoxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methoxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethoxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethoxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-difluoromethoxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-pyridyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-pyridyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-furyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-furyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-thienyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-thienyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzoylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-naphthyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-difluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dichlorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dichlorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dimethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dimethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dimethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dimethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dimethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dimethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trimethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-bis(trifluoromethyl)phenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-bis(trifluoromethyl)phenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-4-trifluoromethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromo-2-fluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methoxyphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxy-3-methylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylthiophenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methyl-1-naphthylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-tetrazolylmethyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-methyl-1-tetrazolylmethyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-benzyl-1-tetrazolylmethyl]-2-(4-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(phenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenoxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenoxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-chlorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-iodophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-acetamidophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-carbamoylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylsulfonylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopentyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methoxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methoxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethoxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethoxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-difluoromethoxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3pyridyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-pyridyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-furyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-furyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-thienyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-thienyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzoylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-naphthyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-difluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dichlorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dichlorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dimethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dimethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dimethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dimethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dimethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dimethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trimethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-bis(trifluoromethyl)phenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-bis(trifluoromethyl)phenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-4-trifluoromethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromo-2-fluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methoxyphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxy-3-methylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylthiophenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methyl-1-naphthylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-tetrazolylmethyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-methyl-1-tetrazolylmethyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-benzyl-1-tetrazolylmethyl]-2-(2,4-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(phenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenoxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenoxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-chlorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-iodophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-acetamidophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-carbamoylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylsulfonylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopentyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methoxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methoxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethoxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethoxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-difluoromethoxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-pyridyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-pyridyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-furyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-furyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-thienyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-thienyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzoylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-naphthyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-difluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dichlorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dichlorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dimethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dimethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dimethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dimethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dimethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dimethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trimethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-bis(trifluoromethyl)phenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-bis(trifluoromethyl)phenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-4-trifluoromethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromo-2-fluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methoxyphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxy-3-methylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylthiophenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methyl-1-naphthylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-tetrazolylmethyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-methyl-1-tetrazolylmethyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-benzyl-1-tetrazolylmethyl]-2-(2,6-dichlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(phenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenoxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenoxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-chlorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-iodophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol4-yl}oxyaceticacid;

9-[(4-acetamidophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-carbamoylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylsulfonylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopentylmethyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methoxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methoxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethoxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethoxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-difluoromethoxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-pyridyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-pyridyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-furyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-furyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-thienyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-thienyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzoylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-naphthyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-difluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dichlorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dichlorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dimethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dimethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dimethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dimethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dimethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dimethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trimethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-bis(trifluoromethyl)phenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-bis(trifluoromethyl)phenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-4-trifluoromethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromo-2-fluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methoxyphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxy-3-methylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylthiophenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methyl-1-naphthylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-tetrazolylmethyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-methyl-1-tetrazolylmethyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-benzyl-1-tetrazolylmethyl]-2-(4-methoxyphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(phenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenoxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenoxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-chlorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-iodophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-acetamidophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-carbamoylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylsulfonylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopentyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methoxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methoxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethoxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethoxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-difluoromethoxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-pyridyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-pyridyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-furyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-furyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-thienyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-thienyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzoylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-naphthyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-difluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dichlorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dichlorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dimethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dimethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dimethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dimethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dimethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dimethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trimethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-bis(trifluoromethyl)phenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-bis(trifluoromethyl)phenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-4-trifluoromethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromo-2-fluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methoxyphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxy-3-methylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylthiophenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methyl-1-naphthylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-tetrazolylmethyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-methyl-1-tetrazolylmethyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-benzyl-1-tetrazolylmethyl]-2-(hydroxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(phenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenoxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenoxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-chlorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-iodophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-acetamidophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-carbamoylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylsulfonylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopentyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methoxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methoxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethoxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethoxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-difluoromethoxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-pyridyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-pyridyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-furyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-furyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-thienyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-thienyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzoylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-naphthyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-difluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl-}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dichlorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dichlorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dimethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dimethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dimethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dimethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dimethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dimethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trimethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-bis(trifluoromethyl)phenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-bis(trifluoromethyl)phenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-4-trifluoromethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromo-2-fluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methoxyphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxy-3-methylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylthiophenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methyl-1-naphthylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-tetrazolylmethyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-methyl-1-tetrazolylmethyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-benzyl-1-tetrazolylmethyl]-2-(methoxymethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(phenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenoxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenoxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-chlorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-iodophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-acetamidophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-carbamoylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylsulfonylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopentyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methoxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methoxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethoxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethoxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-difluoromethoxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-pyridyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-pyridyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-furyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-furyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-thienyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-thienyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzoylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-naphthyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-difluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dichlorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dichlorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dimethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dimethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dimethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dimethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dimethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dimethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trimethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-bis(trifluoromethyl)phenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-bis(trifluoromethyl)phenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-4-trifluoromethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromo-2-fluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methoxyphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxy-3-methylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylthiophenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methyl-1-naphthylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-tetrazolylmethyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-methyl-1-tetrazolylmethyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-benzyl-1-tetrazolylmethyl]-2-(2-furanyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(phenyl)methyl]-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyacetic acid;

9-[(2-phenoxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenoxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-chlorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-iodophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-acetamidophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-carbamoylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylsulfonylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclopentyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methoxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-methoxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-ethoxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethoxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-difluoromethoxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-pyridyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-pyridyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-furyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-furyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-thienyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-thienyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzoylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-phenylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-naphthyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-difluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dichlorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dichlorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,3-dimethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-dimethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,5-dimethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,6-dimethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,4-dimethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-dimethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trimethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3,5-bis(trifluoromethyl)phenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2,4-bis(trifluoromethyl)phenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-4-trifluoromethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-bromo-2-fluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-4-methoxyphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methoxy-3-methylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-trifluoromethylthiophenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(4-methyl-1-naphthylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(1-tetrazolylmethyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-methyl-1-tetrazolylmethyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(5-benzyl-1-tetrazolylmethyl]-2-(2-thienyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

9-[(2-phenoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-methoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acid;

9-[(cyclopentyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acid;

9-[(3-methoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acid;

9-[(3-pyridyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acid;

9-[(2-furyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acid;

9-[(3-furyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acid;

9-[(2-thienyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acid;

9-[(3-thienyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acid;

9-[(2-benzylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acid;

9-[(2-naphthyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acid;

9-[(2,3-difluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-phenoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-methoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acid;

9-[(cyclopentyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acid;

9-[(3-methoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acid;

9-[(3-pyridyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acid;

9-[(2-furyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acid;

9-[(3-furyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acid;

9-[(2-thienyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acid;

9-[(3-thienyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acid;

9-[(2-benzylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acid;

9-[(2-naphthyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acid;

9-[(2,3-difluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acid;

9-[(2-phenoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-methoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acid;

9-[(cyclopentyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acid;

9-[(3-methoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acid;

9-[(3-pyridyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acid;

9-[(2-furyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acid;

9-[(3-furyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acid;

9-[(2-thienyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acid;

9-[(3-thienyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acid;

9-[(2-benzylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acid;

9-[(2-naphthyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acid;

9-[(2,3-difluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-phenoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-methoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acid;

9-[(cyclopentyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(cyclohexyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acid;

9-[(3-methoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acid;

9-[(3-pyridyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acid;

9-[(2-furyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acid;

9-[(3-furyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acid;

9-[(2-thienyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acid;

9-[(3-thienyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acid;

9-[(2-benzylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acid;

9-[(2-naphthyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acid;

9-[(2,3-difluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-phenoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-phenoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-fluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(4-fluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-chlorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-chlorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-bromophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-bromophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-iodophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-iodophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-acetamidophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-acetamidophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-carbamoylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-carbamoylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-methylsulfonylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-methylsulfonylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-methylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-methylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-ethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-ethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-methoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(cyclopropyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(cyclobutyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acid;

9-[(cyclopentyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-8 (cyclohexyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-methoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-ethoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-ethoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-trifluoromethoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-trifluoromethoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-difluoromethoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-difluoromethoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-cyanophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-cyanophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(4-cyanophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-pyridyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acid;

9-[(3-pyridyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acid;

9-[(2-furyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acid;

9-[(3-furyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acid;

9-[(2-thienyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acid;

9-[(3-thienyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acid;

9-[(2-benzylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-benzylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-benzoylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-benzoylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-benzyloxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-benzyloxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(4-benzyloxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-phenylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-phenylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(1-naphthyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acid;

9-[(2-naphthyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acid;

9-[(2,3-difluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,4-difluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,5-difluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,6-difluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3,4-difluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3,5-difluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,3,4-trifluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,3,5-trifluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,3,6-trifluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,4,5-trifluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,4,6-trifluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3,4,5-trifluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(pentafluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,3-dichlorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,4-dichlorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,5-dichlorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2,6-dichlorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]]-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acid;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[3-(2-fluorophenoxy)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[3-(4-fluorophenoxy)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-fluoro-3-methylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(3-chloro-2-fluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-chloro-6-fluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-bromo-5-fluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(1-bromo-2-naphthylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-methyl-1-naphthylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(6-methyl-2-naphthylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid;

9-[(1-fluorenylmethyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acid;

9-[(2-thiophenoxymethylphenyl)-5-carbamoylcarbazol-4-yl]oxyacetic acid;

9-[(3-thiophenoxymethylphenyl)-5-carbamoylcarbazol-4-yl]oxyacetic acid;

9-[(4-thiophenoxymethylphenyl)-5-carbamoylcarbazol-4-yl]oxyacetic acid;

9-[(2-methyl-9-oxo-9H-xanthenyl)-5-carbamoylcarbazol-4-yl]oxyaceticacid;

9-[(2-methyl-9-oxo-9H-thioxanthenyl)-5-carbamoylcarbazol-4-yl]oxyaceticacid;

9-[(2-phenoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-phenoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-fluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-fluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-chlorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-chlorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-bromophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-bromophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-iodophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-iodophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-acetamidophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-acetamidophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-carbamoylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-carbamoylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methylsulfonylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-methylsulfonylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-methylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-ethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-ethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-trifluoromethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-trifluoromethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(cyclopropyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(cyclobutyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(cyclopentyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(cyclohexyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-methoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-ethoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-ethoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-trifluoromethoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-trifluoromethoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-difluoromethoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-difluoromethoxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-cyanophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-cyanophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-cyanophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-pyridyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-pyridyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-furyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-furyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-thienyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-thienyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-benzylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-benzylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-benzoylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-benzoylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-benzyloxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-benzyloxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-benzyloxyphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-phenylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-phenylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(1-naphthyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-naphthyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2,3-difluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4-difluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,5-difluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,6-difluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3,4-difluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3,5-difluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3,4-trifluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3,5-trifluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3,6-trifluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4,5-trifluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4,6-trifluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3,4,5-trifluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(pentafluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3-dichlorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4-dichlorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,5-dichlorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,6-dichlorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-phenoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-phenoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-fluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl,}oxyaceticacid methyl ester;

9-[(4-fluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-chlorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-chlorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-bromophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-bromophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-iodophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-iodophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-acetamidophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-acetamidophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-carbamoylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-carbamoylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methylsulfonylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-methylsulfonylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-methylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-ethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-ethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4yl}oxyaceticacid methyl ester;

9-[(2-trifluoromethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-trifluoromethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(cyclopropyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(cyclobutyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(cyclopentyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(cyclohexyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-methoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-ethoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-ethoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-trifluoromethoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-trifluoromethoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-difluoromethoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-difluoromethoxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-cyanophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-cyanophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-cyanophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-pyridyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-pyridyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-furyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-furyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-thienyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-thienyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-benzylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-benzylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-benzoylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-benzoylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-benzyloxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-benzyloxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-benzyloxyphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-phenylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-phenylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(1-naphthyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-naphthyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2,3-difluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4-difluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,5-difluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,6-difluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3,4-difluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3,5-difluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3,4-trifluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3,5-trifluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3,6-trifluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4,5-trifluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4,6-trifluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3,4,5-trifluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(pentafluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3-dichlorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4-dichlorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,5-dichlorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,6-dichlorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-phenoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-phenoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-fluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-fluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-chlorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-chlorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-bromophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-bromophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-iodophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-iodophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-acetamidophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-acetamidophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-carbamoylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-carbamoylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methylsulfonylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-methylsulfonylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-methylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-ethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-ethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-trifluoromethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-trifluoromethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(cyclopropyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(cyclobutyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(cyclopentyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(cyclohexyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-methoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-ethoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-ethoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-trifluoromethoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-trifluoromethoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-difluoromethoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-difluoromethoxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-cyanophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-cyanophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-cyanophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-pyridyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-pyridyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-furyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-furyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-thienyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-thienyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-benzylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-benzylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-benzoylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-benzoylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-benzyloxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-benzyloxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-benzyloxyphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-phenylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-phenylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(1-naphthyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-naphthyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2,3-difluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4-difluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,5-difluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,6-difluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3,4-difluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3,5-difluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3,4-trifluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3,5-trifluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3,6-trifluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4,5-trifluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4,6-trifluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3,4,5-trifluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(pentafluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3-dichlorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4-dichlorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,5-dichlorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,6-dichlorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-fluoro-2-trifluorbmethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[3-(2-fluorophenoxy)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[3-(4-fluorophenoxy)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluoro-3-methylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-chloro-2-fluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-chloro-6-fluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-bromo-5-fluorophenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(1-bromo-2-naphthylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methyl-1-naphthylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(6-methyl-2-naphthylphenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(1-fluorenylmethyl]-5-carbamoyl-1-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[3-(2-fluorophenoxy)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[3-(4-fluorophenoxy)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluoro-3-methylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-chloro-2-fluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-chloro-6-fluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-bromo-5-fluorophenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(1-bromo-2-naphthylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methyl-1-naphthylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(6-methyl-2-naphthylphenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(1-fluorenylmethyl]-5-carbamoyl-1-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[3-(2-fluorophenoxy)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[3-(4-fluorophenoxy)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluoro-3-methylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-chloro-2-fluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-chloro-6-fluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-bromo-5-fluorophenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(1-bromo-2-naphthylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methyl-1-naphthylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(6-methyl-2-naphthylphenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(1-fluorenylmethyl]-5-carbamoyl-3-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-phenoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-phenoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-fluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-fluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-chlorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-chlorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-bromophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-bromophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-iodophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-iodophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-acetamidophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-acetamidophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-carbamoylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-carbamoylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methylsulfonylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-methylsulfonylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-methylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-ethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-ethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-trifluoromethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-trifluoromethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(cyclopropyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(cyclobutyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(cyclopentyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(cyclohexyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-methoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-ethoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-ethoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-trifluoromethoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-trifluoromethoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-difluoromethoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-difluoromethoxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-cyanophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-cyanophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-cyanophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-pyridyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-pyridyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-furyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-furyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-thienyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-thienyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-benzylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-benzylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-benzoylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-benzoylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-benzyloxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-benzyloxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-benzyloxyphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-phenylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-phenylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(1-naphthyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-naphthyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2,3-difluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4-difluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,5-difluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,6-difluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3,4-difluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3,5-difluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3,4-trifluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3,5-trifluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3,6-trifluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4,5-trifluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4,6-trifluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3,4,5-trifluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(pentafluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3-dichlorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4-dichlorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,5-dichlorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,6-dichlorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-phenoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-phenoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-fluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-fluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-chlorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-chlorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-bromophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-bromophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-iodophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-iodophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-acetamidophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-acetamidophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-carbamoylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-carbamoylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methylsulfonylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-methylsulfonylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-methylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-ethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-ethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-trifluoromethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-trifluoromethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(cyclopropyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(cyclobutyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(cyclopentyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(cyclohexyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-methoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-ethoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-ethoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-trifluoromethoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-trifluoromethoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-difluoromethoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-difluoromethoxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-cyanophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-cyanophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-cyanophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-pyridyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-pyridyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-furyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-furyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-thienyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(3-thienyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-benzylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-benzylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-benzoylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-benzoylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-benzyloxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-benzyloxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-benzyloxyphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-phenylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-phenylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(1-naphthyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-naphthyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2,3-difluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4-difluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,5-difluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,6-difluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3,4-difluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3,5-difluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3,4-trifluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3,5-trifluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3,6-trifluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4,5-trifluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4,6-trifluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3,4,5-trifluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(pentafluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,3-dichlorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,4-dichlorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,5-dichlorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2,6-dichlorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[3-(2-fluorophenoxy)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[3-(4-fluorophenoxy)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluoro-3-methylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-chloro-2-fluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-chloro-6-fluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-bromo-5-fluorophenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(1-bromo-2-naphthylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methyl-1-naphthylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(6-methyl-2-naphthylphenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(1-fluorenylmethyl]-5-carbamoyl-2-fluorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-[(2-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluoro-6-trifluoromethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-fluoro-5-trifluoromethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-fluoro-2-trifluoromethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(4-fluoro-3-trifluoromethylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[3-(2-fluorophenoxy)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[3-(4-fluorophenoxy)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-fluoro-3-methylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(3-chloro-2-fluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-chloro-6-fluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-bromo-5-fluorophenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(1-bromo-2-naphthylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-methyl-1-naphthylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(6-methyl-2-naphthylphenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(2-((phenylsulfonyl)methyl)phenyl)methyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyaceticacid methyl ester;

9-[(1-fluorenylmethyl]-5-carbamoyl-2-chlorocarbazol-4-yl}oxyacetic acidmethyl ester;

9-benzyl-4-phenylsulfonamidoylmethyloxy-carbazole-5-carboxamide;

9-benzyl-4-phenylmethylsulfonamidoylmethyloxy-carbazole-5-carboxamide;

9-benzyl-4-(2-methylphenylsulfonamidoylmethyloxy)-carbazole-5-carboxamide;

9-benzyl-4-(naphth-2-ylsulfonamidoylmethyloxy)-carbazole-5-carboxamide;

9-benzyl-4-trifluoromethylsulfonamidoylmethyloxy-carbazole-5-carboxamide;

Further typical examples of intermediates of formula I which are usefulin the present invention include:

3-(3-Carbomethoxy-2-chloroanilino)cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-bromoanilino)cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-iodoanilino)cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-chloroanilino)-4-methyl-cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-bromoanilino)-4-methyl-cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-iodoanilino)-4-methyl-cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-chloroanilino)-4-phenyl-cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-bromoanilino)-4-phenyl-cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-iodoanilino)-4-phenyl-cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-chloroanilino)-4-ethyl-cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-bromoanilino)-4-ethyl-cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-iodoanilino)-4-ethyl-cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-chloroanilino)-4-isopropyl-cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-bromoanilino)-4-isopropyl-cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-iodoanilino)-4-isopropyl-cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-chloroanilino)-4-pentyl-cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-bromoanilino)-4-pentyl-cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-iodoanilino)-4-pentyl-cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-chloroanilino)-4-(4′-chlorophenyl)cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-bromoanilino)-4-(4′-chlorophenyl)cyclohex-2-en-1-one;

3-(3-Carbomethoxy-2-iodoanilino)-4-(4′-chlorophenyl)cyclohex-2-en-1-one;

5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one;

5-carbomethoxy-2-methyl-1,2-dihydro-9H-carbazol-4(3H)-one;

5-carbomethoxy-2-ethyl-1,2-dihydro-9H-carbazol-4(3H)-one;

5-carbomethoxy-2-pentyl-1,2-dihydro-9H-carbazol-4(3H)-one;

5-carbomethoxy-2-isopropyl-1,2-dihydro-9H-carbazol-4(3H)-one;

5-carbomethoxy-2-phenyl-1,2-dihydro-9H-carbazol-4(3H)-one;

5-carbomethoxy-2-(4′-chlorophenyl)-1,2-dihydro-9H-carbazol-4(3H)-one;

9-[(phenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-phenoxyphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-phenoxyphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-fluorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-fluorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-chlorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-chlorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-bromophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-bromophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-methylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-methylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-cyanophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-cyanophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-trifluoromethylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-trifluoromethylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-benzylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-benzylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-phenylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-phenylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-naphthyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(1-naphthyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(phenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-phenoxyphenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-phenoxyphenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-fluorophenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-fluorophenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-chlorophenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-chlorophenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-bromophenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-bromophenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-methylphenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-methylphenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-cyanophenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-cyanophenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-trifluoromethylphenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-trifluoromethylphenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-benzylphenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-benzylphenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-phenylphenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-phenylphenyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-naphthyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(1-naphthyl)methyl]-2-methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(phenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-phenoxyphenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-phenoxyphenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-fluorophenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-fluorophenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-chlorophenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-chlorophenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-bromophenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-bromophenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-methylphenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-methylphenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-cyanophenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-cyanophenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-trifluoromethylphenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-trifluoromethylphenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-benzylphenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-benzylphenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-phenylphenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-phenylphenyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-naphthyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(1-naphthyl)methyl]-2-ethyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(phenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-phenoxyphenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-phenoxyphenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-fluorophenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-fluorophenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-chlorophenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-chlorophenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-bromophenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-bromophenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-methylphenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-methylphenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-cyanophenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-cyanophenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-trifluoromethylphenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-trifluoromethylphenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-benzylphenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-benzylphenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-phenylphenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-phenylphenyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-naphthyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(1-naphthyl)methyl]-2-isopropyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(phenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-phenoxyphenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-phenoxyphenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-fluorophenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-fluorophenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-chlorophenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-chlorophenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-bromophenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-bromophenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-methylphenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-methylphenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-cyanophenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-cyanophenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-trifluoromethylphenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-trifluoromethylphenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-benzylphenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-benzylphenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-phenylphenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-phenylphenyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-naphthyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(1-naphthyl)methyl]-2-pentyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(phenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-phenoxyphenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-phenoxyphenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-fluorophenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-fluorophenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-chlorophenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-chlorophenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-bromophenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-bromophenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-methylphenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-methylphenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-cyanophenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-cyanophenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-trifluoromethylphenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-trifluoromethylphenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-benzylphenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-benzylphenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-phenylphenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-phenylphenyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-naphthyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(1-naphthyl)methyl]-2-phenyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(phenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-phenoxyphenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-phenoxyphenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-fluorophenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-fluorophenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-chlorophenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-chlorophenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-bromophenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-bromophenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-methylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-methylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-cyanophenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-cyanophenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-trifluoromethylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-trifluoromethylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-benzylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-benzylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-phenylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(3-phenylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(2-naphthyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(1-naphthyl)methyl]-2-(4′-chlorophenyl)-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;

9-[(phenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-phenoxyphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-phenoxyphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-fluorophenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-fluorophenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-chlorophenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-chlorophenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-bromophenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-bromophenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-methylphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-methylphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-cyanophenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-cyanophenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-trifluoromethylphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-trifluoromethylphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-benzylphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-benzylphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-phenylphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-phenylphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-naphthyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(1-naphthyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(phenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-phenoxyphenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-phenoxyphenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-fluorophenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-fluorophenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-chlorophenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-chlorophenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-bromophenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-bromophenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-methylphenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-methylphenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-cyanophenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-cyanophenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-trifluoromethylphenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-trifluoromethylphenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-benzylphenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-benzylphenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-phenylphenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-phenylphenyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-naphthyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(1-naphthyl)methyl]-2-methyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(phenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-phenoxyphenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-phenoxyphenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-fluorophenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-fluorophenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-chlorophenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-chlorophenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-bromophenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-bromophenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-methylphenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-methylphenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-cyanophenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-cyanophenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-trifluoromethylphenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-trifluoromethylphenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-benzylphenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-benzylphenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-phenylphenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-phenylphenyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-naphthyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(1-naphthyl)methyl]-2-ethyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(phenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-phenoxyphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-phenoxyphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-fluorophenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-fluorophenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-chlorophenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-chlorophenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-bromophenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-bromophenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-methylphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-methylphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-cyanophenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-cyanophenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-trifluoromethylphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-trifluoromethylphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-benzylphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-benzylphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-phenylphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-phenylphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-naphthyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(1-naphthyl)methyl]-2-isopropyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(phenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-phenoxyphenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-phenoxyphenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-fluorophenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-fluorophenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-chlorophenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-chlorophenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-bromophenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-bromophenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-methylphenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-methylphenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-cyanophenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-cyanophenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-trifluoromethylphenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-trifluoromethylphenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-benzylphenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-benzylphenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-phenylphenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-phenylphenyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-naphthyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(1-naphthyl)methyl]-2-pentyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(phenyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-phenoxyphenyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-phenoxyphenyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-fluorophenyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-fluorophenyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-chlorophenyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-chlorophenyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-bromophenyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-bromophenyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-methylphenyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-methylphenyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-cyanophenyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-cyanophenyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-trifluoromethylphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-trifluoromethylphenyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-benzylphenyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-benzylphenyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-phenylphenyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(3-phenylphenyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(2-naphthyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(1-naphthyl)methyl]-2-phenyl-4-hydroxy-5-carbomethyoxy carbazole;

9-[(phenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-phenoxyphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-phenoxyphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-fluorophenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-fluorophenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-chlorophenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-chlorophenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-bromophenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-bromophenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-methylphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-methylphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-cyanophenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-cyanophenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2trifluoromethylphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-trifluoromethylphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-benzylphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-benzylphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-phenylphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(3-phenylphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(2-naphthyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(1-naphthyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbomethyoxycarbazole;

9-[(phenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(2-phenoxyphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(3-phenoxyphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(2-fluorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(3-fluorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(2-chlorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(3-chlorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(2-bromophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(3-bromophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(2-methylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(3-methylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(2-cyanophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(3-cyanophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(2-trifluoromethylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(3-trifluoromethylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(2-benzylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(3-benzylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(2-phenylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(3-phenylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(2-naphthyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(1-naphthyl)methyl]-4-hydroxy-5-carbamoyl carbazole;

9-[(phenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-phenoxyphenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-phenoxyphenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-fluorophenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-fluorophenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-chlorophenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-chlorophenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-bromophenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-bromophenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-methylphenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-methylphenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-cyanophenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-cyanophenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-trifluoromethylphenyl)methyl]-2-methyl-4-hydroxy-5-carbamoylcarbazole;

9-[(3-trifluoromethylphenyl)methyl]-2-methyl-4-hydroxy-5-carbamoylcarbazole;

9-[(2-benzylphenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-benzylphenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-phenylphenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-phenylphenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-naphthyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(1-naphthyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole;

9-[(phenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-phenoxyphenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-phenoxyphenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-fluorophenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-fluorophenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-chlorophenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-chlorophenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-bromophenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-bromophenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-methylphenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-methylphenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-cyanophenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-cyanophenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-trifluoromethylphenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoylcarbazole;

9-[(3-trifluoromethylphenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoylcarbazole;

9-[(2-benzylphenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-cyanophenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-trifluoromethylphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoylcarbazole;

9-[(3-trifluoromethylphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoylcarbazole;

9-[(2-benzylphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-benzylphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-phenylphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-phenylphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-naphthyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(1-naphthyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(phenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-phenoxyphenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-phenoxyphenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-fluorophenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-fluorophenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-chlorophenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-chlorophenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-bromophenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-benzylphenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-phenylphenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-phenylphenyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-naphthyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(1-naphthyl)methyl]-2-ethyl-4-hydroxy-5-carbamoyl carbazole;

9-[(phenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-phenoxyphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-phenoxyphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-fluorophenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-fluorophenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-chlorophenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-chlorophenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-bromophenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-bromophenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-methylphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-methylphenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-cyanophenyl)methyl]-2-isopropyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-bromophenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-methylphenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-methylphenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-cyanophenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-cyanophenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-trifluoromethylphenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoylcarbazole;

9-[(3-trifluoromethylphenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoylcarbazole;

9-[(2-benzylphenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-benzylphenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-phenylphenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-phenylphenyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-naphthyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(1-naphthyl)methyl]-2-pentyl-4-hydroxy-5-carbamoyl carbazole;

9-[(phenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-phenoxyphenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-phenoxyphenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-fluorophenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-fluorophenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-chlorophenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-chlorophenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-bromophenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-bromophenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-methylphenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-methylphenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-cyanophenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-cyanophenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-trifluoromethylphenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoylcarbazole;

9-[(3-trifluoromethylphenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoylcarbazole;

9-[(2-benzylphenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-benzylphenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-phenylphenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(3-phenylphenyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(2-naphthyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(1-naphthyl)methyl]-2-phenyl-4-hydroxy-5-carbamoyl carbazole;

9-[(phenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoyl carbazole;

9-[(2-phenoxyphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

9-[(3-phenoxyphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

9-[(2-fluorophenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

9-[(3-fluorophenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

9-[(2-chlorophenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

9-[(3-chlorophenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

9-[(2-bromophenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

9-[(3-bromophenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5carbamoylcarbazole;

9-[(2-methylphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

9-[(3-methylphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

9-[(2-cyanophenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

9-[(3-cyanophenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

9-[(2-trifluoromethylphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

9-[(3-trifluoromethylphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

9-[(2-benzylphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

9-[(3-benzylphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

9-[(2-phenylphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

9-[(3-phenylphenyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

9-[(2-naphthyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

9-[(1-naphthyl)methyl]-2-(4′-chlorophenyl)-4-hydroxy-5-carbamoylcarbazole;

ethyl 5-methoxy-8-methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylate;

ethyl9-benzyl-5-methoxy-8-methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylate;

9-benzyl-5-methoxy-8-methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

5-carbamoyl-4-methoxy-1-methylcarbazole;

9-benzyl-5-carbamoyl-4-methoxy-1-methylcarbazole;

Ethyl9-benzyl-5-methoxy-8-fluoro-1,2,3,4-tetrahydrocarbazole-4-carboxylate;

9-Benzyl-5-methoxy-8-fluoro-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

9-benzyl-5-carbamoyl-4-methoxy-1-fluorocarbazole;

Ethyl9-benzyl-5-methoxy-8-chloro-1,2,3,4-tetrahydrocarbazole-4-carboxylate;

9-Benzyl-5-methoxy-8-chloro-1,2,3,4-tetrahydrocarbazole-4-carboxamide;

9-benzyl-5-carbamoyl-4-methoxy-1-chlorocarbazole;

5-carbamoyl-4-hydroxy-1-chlorocarbazole;

[5-carbamoyl-1-chlorocarbazol-4-yl]oxyacetic acid methyl ester;

{9-[(2-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(phenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid; methylester;

9-[(2-phenoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(3-phenoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(2-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(3-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(2-chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(3-chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(2-bromophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(3-bromophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(2-methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(3-methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(2-cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(3-cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(2-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-benzylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(3-benzylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(2-phenylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(3-phenylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(2-naphthyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid; methylester;

9-[(1-naphthyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid; methylester;

9-[(phenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(2-phenoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-phenoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-fluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-fluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-chlorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-chlorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-bromophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-bromophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-methylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-methylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-cyanophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-cyanophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-trifluoromethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-trifluoromethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-benzylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-benzylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-phenylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-phenylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-naphthyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(1-naphthyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(phenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl)oxyacetic acid;methyl ester;

9-[(2-phenoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-phenoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-fluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-fluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-chlorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-chlorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-bromophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-bromophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-methylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-methylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-cyanophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-cyanophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-trifluoromethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-trifluoromethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-benzylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-benzylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-phenylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-phenylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-naphthyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(1-naphthyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(phenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(2-phenoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-phenoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-fluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-fluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-chlorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-chlorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-bromophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-bromophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-methylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-methylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-cyanophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-cyanophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-trifluoromethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-trifluoromethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-benzylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-benzylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-phenylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-phenylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-naphthyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(1-naphthyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(phenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(2-phenoxyphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-phenoxyphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-fluorophenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-fluorophenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-chlorophenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-chlorophenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-bromophenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-bromophenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-methylphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-methylphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-cyanophenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-cyanophenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-trifluoromethylphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-trifluoromethylphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-benzylphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-benzylphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-phenylphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-phenylphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-naphthyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(1-naphthyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(phenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(2-phenoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-phenoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-fluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-fluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-chlorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-chlorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-bromophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-bromophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-methylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-methylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-cyanophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-cyanophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-trifluoromethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-trifluoromethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-benzylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-benzylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-phenylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-phenylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-naphthyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(1-naphthyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;methyl ester;

9-[(phenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-phenoxyphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-phenoxyphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-fluorophenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-fluorophenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-chlorophenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-chlorophenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-bromophenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-bromophenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-methylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-methylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-cyanophenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-cyanophenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-trifluoromethylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-trifluoromethylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-benzylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-benzylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester

9-[(2-phenylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(3-phenylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(2-naphthyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(1-naphthyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; methyl ester;

9-[(phenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid; t-butylester;

9-[(2-phenoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(3-phenoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(2-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(3-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(2-chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(3-chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(2-bromophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(3-bromophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(2-methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(3-methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(2-cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(3-cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(2-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-benzylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(3-benzylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(2-phenylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(3-phenylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(2-naphthyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid; t-butylester;

9-[(1-naphthyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid; t-butylester;

9-[(phenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(2-phenoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-phenoxyphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-fluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-fluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-chlorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-chlorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-bromophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-bromophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-methylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-methylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-cyanophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-cyanophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-trifluoromethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-trifluoromethylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-benzylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-benzylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-phenylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-phenylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-naphthyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(1-naphthyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(phenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(2-phenoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-phenoxyphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-fluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-fluorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-chlorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-chlorophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-bromophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-bromophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-methylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-methylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-cyanophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-cyanophenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-trifluoromethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-trifluoromethylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-benzylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-benzylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-phenylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-phenylphenyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-naphthyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(1-naphthyl)methyl]-2-ethyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(phenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(2-phenoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-phenoxyphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-fluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-fluorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-chlorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-chlorophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-bromophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-bromophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-methylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-methylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-cyanophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-cyanophenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-trifluoromethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-trifluoromethylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-benzylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-benzylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-phenylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-phenylphenyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-naphthyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(1-naphthyl)methyl]-2-isopropyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(phenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(2-phenoxyphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-phenoxyphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-fluorophenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-fluorophenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-chlorophenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-chlorophenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-bromophenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-bromophenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-methylphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-methylphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-cyanophenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-cyanophenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-trifluoromethylphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-trifluoromethylphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-benzylphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-benzylphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-phenylphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-phenylphenyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-naphthyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(1-naphthyl)methyl]-2-pentyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(phenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(2-phenoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-phenoxyphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-fluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-fluorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-chlorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-chlorophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-bromophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-bromophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-methylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-methylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-cyanophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-cyanophenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-trifluoromethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-trifluoromethylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-benzylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-benzylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-phenylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-phenylphenyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-naphthyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(1-naphthyl)methyl]-2-phenyl-5-carbamoylcarbazol-4-yl}oxyacetic acid;t-butyl ester;

9-[(phenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-phenoxyphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-phenoxyphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-fluorophenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-fluorophenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-chlorophenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-chlorophenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-bromophenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-bromophenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-methylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-methylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-cyanophenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-cyanophenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-trifluoromethylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-trifluoromethylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-benzylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-benzylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-phenylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(3-phenylphenyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(2-naphthyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

9-[(1-naphthyl)methyl]-2-(4′-chlorophenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid; t-butyl ester;

{9-[(2-(1-pyrrolidinyl)ethyl)]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

{9-[(2-(1-piperidinyl)ethyl)]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

{9-[(2-(1-morpholino)ethyl)]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

{9-(1-methyl-2-pyrrolidinylmethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

{9-(1-methyl-2-piperidinylmethyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid;

{9-(1-ethyl-2-piperidinyl)-5-carbamoylcarbazol-4-yl}oxyacetic acid;

{9-(1-methyl-2-piperidinyl)-5-carbamoylcarbazol-4-yl}oxyacetic acid;

{9-[1-ethyl-3-pyrrolidinyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

{9-[1-methyl-3-pyrrolidinyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

{9-[3-quinuclidine]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

{9-[cinnamyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

{9-[phenethyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

{9-[3-phenyl-n-propyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid;

{9-[3-(4-fluorophenoxy)-phenylmethyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid;

2-[4-oxo-5-carboxamido-9-(2-methylbenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(3-methylbenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(4-methylbenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(4-tert-butylbenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-pentafluorobenzyl-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(2-fluorobenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(3-fluorobenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(4-fluorobenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(2,6-difluorobenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(3,4-difluorobenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(2,5-difluorobenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(3,5-difluorobenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(2,4-difluorobenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(2,3-difluorobenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[2-(trifluoromethyl)benzyl]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[3-(trifluoromethyl)benzyl]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[4-(trifluoromethyl)benzyl]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[3,5-bis(trifluoromethyl)benzyl]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[2,4-bis(trifluoromethyl)benzyl]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(a-methylnaphthyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(b-methylnaphthyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(3,5-dimethylbenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(2,4-dimethylbenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(2-phenylbenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(3-phenylbenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(4-phenylbenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(1-fluorenylmethyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(2-fluoro-3-methylbenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(3-benzoylbenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(2-phenoxybenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(3-phenoxybenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(4-phenoxybenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[3-[2-(fluorophenoxy)benzyl]]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[3-[4-(fluorophenoxy)benzyl]]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[2-fluoro-3-(trifluoromethyl)benzyl]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[2-fluoro-4-(trifluoromethyl)benzyl]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[2-fluoro-5-(trifluoromethyl)benzyl]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[3-fluoro-5-(trifluoromethyl)benzyl]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[4-fluoro-2-(trifluoromethyl)benzyl]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[4-fluoro-3-(trifluoromethyl)benzyl]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[2-fluoro-6-(trifluoromethyl)benzyl]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(2,3,6-trifluorobenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(2,3,5-trifluorobenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(2,4,5-trifluorobenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(2,4,6-trifluorobenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(2,3,4-trifluorobenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(3,4,5-trifluorobenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[3-(trifluoromethoxyl)benzyl]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[4-(trifluoromethoxyl)benzyl]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[4-methoxy(tetrafluoro)benzyl]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(2-methoxybenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(3-methoxybenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(4-methoxybenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(4-ethylbenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(4-isopropylbenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(3,4,5-trimethoxybenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(3,4-methylenedioxybenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(4-methoxy-3-methylbenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(3,5-dimethoxybenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(2,5-dimethoxybenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(4-ethoxybenzyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(cyclohexylmethyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(cyclopentylmethyl)-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-ethyl-9H-pyrido[3,4-b]indolyl]acetic acid;

2-[4-oxo-5-carboxamido-9-(1-propyl)-9H-pyrido[3,4-b]indolyl]acetic acid;

2-[4-oxo-5-carboxamido-9-(2-propyl)-9H-pyrido[3,4-b]indolyl]acetic acid;

2-[4-oxo-5-carboxamido-9-(1-butyl)-9H-pyrido[3,4-b]indolyl]acetic acid;

2-[4-oxo-5-carboxamido-9-(2-butyl)-9H-pyrido[3,4-b]indolyl]acetic acid;

2-[4-oxo-5-carboxamido-9-isobutyl-9H-pyrido[3,4-b]indolyl]acetic acid;

2-[4-oxo-5-carboxamido-9-[2-(1-phenylethyl)]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[3-(1-phenylpropyl)]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-[4-(1-phenylbutyl)]-9H-pyrido[3,4-b]indolyl]aceticacid;

2-[4-oxo-5-carboxamido-9-(1-pentyl)-9H-pyrido[3,4-b]indolyl]acetic acid;and

2-[4-oxo-5-carboxamido-9-(1-hexyl)-9H-pyrido[3,4-b]indolyl]acetic acid;

or a pharmaceutically acceptable racemate, solvate, tautomer, opticalisomer, prodrug derivative or salt thereof.

Synthesis Methods

The compounds of formula I where Z is cyclohexene are prepared accordingto the following reaction Schemes I(a) and (c).

Wherein;

R¹ is —NH₂, R³(a) is H, —O(C₁-C₄)alkyl, halo, —(C₁-C₆)alkyl, phenyl,—(C₁-C₄)alkylphenyl; phenyl substituted with —(C₁-C₆)alkyl, halo, or—CF₃; —CH₂OSi(C₁-C₆)alkyl, furyl, thiophenyl, —(C₁-C₆)hydroxyalkyl,—(C₁-C₆)alkoxy(C₁-C₆)alkyl, —(C₁-C₆)alkoxy(C₁-C₆)alkenyl; or—(CH₂)_(n)R⁸ where R⁸ is H, —CONH₂, —NR⁹R¹⁰, —CN or phenyl where R⁹ andR¹⁰ are independently hydrogen, —CF₃, phenyl, —(C₁-C₄)alkyl,—(C₁-C₄)alkylphenyl or -phenyl(C₁-C₄)alkyl and n is 1 to 8;

when R¹ is —NHNH₂, R³(a) is H, —O(C₁-C₄)alkyl, halo, —(C₁-C₆)alkyl,phenyl, —(C₁-C₄)alkylphenyl; phenyl substituted with —(C₁-C₆)alkyl, haloor —CF₃; —CH₂OSi(C₁-C₆)alkyl, furyl, thiophenyl, —(C₁-C₆)hydroxyalkyl,—(C₁-C₆)alkoxy (C₁-C₆)alkyl, —(C₁-C₆)alkoxy (C₁-C₆)alkenyl; or—(CH₂)_(n)R⁸ where R⁸ is H, —NR⁹R¹⁰, —CN or phenyl where R⁹ and R¹⁰ areindependently hydrogen, —CF₃, phenyl, —(C₁-C₄)alkyl, —(C₁-C₄)alkylphenylor -phenyl(C₁-C₄)alkyl and n is 1 to 8;

R^(2(a)) is —OCH₃ or —OH.

An appropriately substituted nitrobenzene (1) can be reduced to theaniline (2) by treatment with a reducing agent, such as hydrogen in thepresence of Pd/C, preferably at room temperature.

Compound (2) is N-alkylated at temperatures of from about 0 to 20° C.using an alkylating agent such as an appropriately substituted aldehydeand sodium cyanoborohydride to form (3). Alternately, an appropriatelysubstituted benzyl halide may be used for the first alkylation step. Theresulting intermediate is further N-alkylated by treatment with2-carbethoxy-6-bromocyclohexanone, preferably at temperatures of about80° C. to yield (4) or by treatment with potassium hexamethyldisilazideand the bromoketoester.

The product (4) is cyclized to the tetrahydrocarbazole (5) by refluxingwith ZnCl₂ in benzene for from about 1 to 2 days, preferably at 80° C.(Ref 1). Compound (5) is converted to the hydrazide (6) by treatmentwith hydrazine at temperatures of about 100° C., or to the amide (7) byreacting with methylchloroaluminum amide in benzene. (Ref 2)Alternatively, (7) may be produced by treatment of (6) with Raney nickelactive catalyst.

It will be readily appreciated that when R^(3(a)) is:

conversion to the amide will also be achieved in this procedure.

Compounds (6) and (7) may be dealkylated, preferably at 0° C. to roomtemperature, with a dealkylating agent, such as boron tribromide orsodium thioethoxide, to give compound (7) where R^(2(a)) is —OH, whichmay then be further converted to compound (9), by realkylating with abase, such as sodium hydride, and an alkylating agent, such asBr(CH₂)_(m)R⁵, where R⁵ is the carboxylate or phosphonic diester ornitrile as defined above. Conversion of R² to the carboxylic acid may beaccomplished by treatment with an aqueous base. When R² is nitrile,conversion to the tetrazole may be achieved by reacting with tri-butyltin azide or conversion to the carboxamide may be achieved by reactingwith basic hydrogen peroxide. When R² is the phosphonic diester,conversion to the acid may be achieved by reacting with a dealkylatingagent such as trimethylsilyl bromide. The monoester may be accomplishedby reacting the diester with an aqueous base.

When R² and R³ are both methoxy, selective demethylation can be achievedby treating with sodium ethanethiolate in dimethylformamide at 100° C.

Ref 1 Julia, M.; Lenzi, J. Preparation d'acidestetrahydro-1,2,3,4-carbazole-1 ou -4. Bull.Soc.Chim.France, 1962,2262-2263.

Ref 2 Levin, J. I.; Turos, E.; Weinreb, S. M. An alternative procedurefor the aluminum-mediated conversion of esters to amides. Syn.Comm.,1982, 12, 989-993.

An alternative synthesis of intermediate (5) is shown in Scheme I(b), asfollows.

where PG is a protecting group;

R^(3a) is as defined in Scheme 1, above.

The aniline (2) is N-alkylated with 2-carbethoxy-6-bromocyclohexanone indimethyl formamide in the presence of sodium bicarbonate for 8-24 hoursat 50° C. Preferred protecting groups include methyl, carbonate, andsilyl groups, such as t-butyldimethylsilyl. The reaction product (4′) iscyclized to (5′) using the ZnCl₂ in benzene conditions described inScheme I(a), above. N-alkylation of (5′) to yield (5) is accomplished bytreatment with sodium hydride and the appropriate alkyl halide indimethylformamide at room temperature for 4-8 hours.

R^(3(a)) is as defined in Scheme I.

As discussed in Scheme I above, carbazole (5) is hydrolyzed to thecarboxylic acid (10) by treatment with an aqueous base, preferably atroom temperature to about 100° C. The intermediate is then converted toan acid chloride utilizing, for example, oxalyl chloride anddimethylformamide, and then further reacted with a lithium salt of (S)or (R)-4-alkyl-2-oxazolidine at a temperature of about −75° C., to give(11a) and (11b), which are separable by chromatography.

The diastereomers are converted to the corresponding enantiomeric benzylesters (12) by brief treatment at temperatures of about 0° C. to roomtemperature with lithium benzyl oxide. (Ref 3) The esters (12) are thenconverted to (7) preferably by treatment with methylchloroaluminum amide(Ref 2, above) or, alternately, by hydrogenation using, for example,hydrogen and palladium on carbon, as described above, to make the acidand then reacting with an acyl azide, such as diphenylphosphoryl azidefollowed by treatment with ammonia. Using the procedure described abovein Scheme I, compound (9a) or (9b) may be accomplished.

Ref 3 Evans, D. A.; Ennis, M. D.; Mathre, D. J. Asymmetric alkylationreactions of chiral imide enolates. A practical approach to theenantioselective synthesis of alpha-substituted carboxylic acidderivatives. J.Am.Chem.Soc., 1982, 104, 1737-1738.

Compounds of formula I where Z is phenyl can be prepared as follows inSchemes III(a)-(f), below.

A 1,2,3,4-tetrahydrocarbazole-4-carboxamide or 4-carboxhydrazide (13) isdehydrogenated by refluxing in a solvent such as carbitol in thepresence of Pd/C to produce the carbazole-4-carboxamide. Alternately,treatment of (13) with DDQ in an appropriate solvent such as dioxaneyields carbozole (14).

Depending on the substituent pattern oxidation as described above mayresult in de-alkylation of the nitrogen. For example when R³ issubstituted at the 8-position with methyl, oxidation results indealkylation of the nitrogen which may be realkylated by treatment withsodium hydride and the appropriate alkyl halide as described in SchemeI(a) above to prepare the deired product (14).

The intermediates and final products may be isolated and purified byconventional techniques, for example by concentration of the solvents,followed by washing of the residue with water, then purification byconventional techniques, such as chromatography or recrystallization.

It will be readily appreciated by the skilled artisan that the startingmaterials are either commercially available or can be readily preparedby known techniques from commercially available starting materials. Allother reactants used to prepare the compounds in the instant inventionare commercially available.

Benzoic acid derivative (16) where X is preferably chlorine, bromine oriodine and the protecting group is preferably —CH₃, are reduced to thecorresponding aniline (25) with a reducing agent, such as stannouschloride in the presence of acid under the general conditions ofSakamoto et al, Chem Pharm. Bull. 35 (5), 1823-1828 (1987).

Alternatively, reduction with sodium dithionite in the presence of abase, such as sodium carbonate in a noninterferring solvent, such aswater, ethanol, and/or tetrahydrofuran affords starting material (16).

Alternatively, reduction by hydrogenation over a sulfided platinumcatalyst supported on carbon with hydrogen at 1 to 60 atmospheres in anoninterfering solvent, preferably ethyl acetate, to form a startingmaterial (16).

The reactions are conducted at temperatures from about 0 to 100° C.preferably at ambient temperature, and are substantially complete inabout 1 to 48 hours depending on conditions.

The aniline (25) and dione (15) are condensed under dehydratingconditions, for example, using the general procedure of Iida, et al.,(Ref 5), with or without a noninterfering solvent, such as toluene,benzene, or methylene chloride, under dehydrating conditions at atemperature about 10 to 150° C. The water formed in the process can beremoved by distillation, azetropic removal via a Dean-Stark apparatus,or the addition of a drying agent, such as molecular sieves, magnesiumsulfate, calcium carbonate, sodium sulfate, and the like.

The process can be performed with or without a catalytic amount of anacid, such a p-toluenesulfonic acid or methanesulfonic acid. Otherexamples of suitable catalysts include hydrochloric acid, phenylsulfonicacid, calcium chloride, and acetic acid.

Examples of other suitable solvents include tetrahydrofuran, ethylacetate, methanol, ethanol, 1,1,2,2-tetrachloroethane, chlorobenzene,bromobenzene, xylenes, and carbotetrachloride.

The condensation of the instant process is preferably carried out neat,at a temperature about 100 to 150° C. with the resultant water removedby distillation via a stream of inert gas, such as, nitrogen or argon.

The reaction is substantially complete in about 30 minutes to 24 hours.

Intermediate (26) may then be readily cyclized in the presence of apalladium catalyst, such as Pd(OAc)₂ or Pd(PPh₃)₄ and the like, aphosphine, preferably a trialkyl- or triarylphosphine, such astriphenylphosphine, tri-o-tolylphosphine, or tricyclohexylphosphine, andthe like, a base, such as, sodium bicarbonate, triethylamine, ordiisopropylethylamine, in a noninterfering solvent, such as,acetonitrile, triethylamine, or toluene at a temperature about 25 to200° C. to form (19).

Examples of other suitable solvents include tetrahydrofuran, benzene,dimethylsulfoxide, or dimethylformamide.

Examples of other suitable palladium catalysts include Pd(PPh₃)Cl₂,Pd(OCOCF₃)₂, [(CH₃C₆H₄)₃P]₂PdCl₂, [(CH₃CH₂)₃P]₂PdCl₂, [(C₆H₁₁)₃P]₂PdCl₂,and [(C₆H₅)₃P]₂PdBr₂.

Examples of other suitable phosphines include triisopropylphosphine,triethylphosphine, tricyclopentylphosphine, 1,2-bis(diphenylphosphino)ethane, 1,3-bis(diphenylphosphino)propane, and1,4-bis(diphenylphosphino)butane.

Examples of other suitable bases include tripropyl amine,2,2,6,6-tetramethylpiperidine, 1,5-diazabicyclo[2.2.2]octane (DABCO),1,8-diazabicyclo[5.4.0]undec-7-ene (DBU),1,5-diazabicyclo[4.3.0]non-5-ene, (DBN) sodium carbonate, potassiumcarbonate, and potassium bicarbonate.

The cyclization of the instant process is preferably carried out withpalladium(II)acetate as catalyst in the presence of eithertriphenylphosphine, tri-o-tolylphosphine,1,3-bis(diphenylphosphino)propane, or tricyclohexylphosphine inacetonitrile as solvent and triethylamine as base at a temperature about50 to 150° C. The reaction is substantially complete in about 1 hour to14 days.

Alternatively, a preferred process for cyclization consists of thereaction of intermediate (26) with a palladacycle catalyst such astrans-di(μ-acetato)-bis[o-(di-o-tolylphosphino)benzyl]dipalladium (II)in a solvent such as dimethylacetamide (DMAC) at 120-140° C. in thepresence of a base such as sodium acetate.

Intermediate (19) may be alkylated with an alkylating agent XCH₂R₄,where X is halo in the presence of a base to form (20). Suitable basesinclude potassium carbonate, sodium carbonate, lithium carbonate, cesiumcarbonate, sodium bicarbonate, potassium bicarbonate, potassiumhydroxide, sodium hydroxide, sodium hydride, potassium hydride, lithiumhydride, and Triton B (N-benzyltrimethylammonium hydroxide).

The reaction may or may not be carried out in the presence of a crownether. Potassium carbonate and Triton B are preferred. The amount ofalkylating agent is not critical, however, the reaction is bestaccomplished using an excess of alkyl halide relative to the startingmaterial.

A catalytic amount of an iodide, such as sodium iodide or lithium iodidemay or may not be added to the reaction mixture. The reaction ispreferably carried out in an organic solvent, such as, acetone,dimethylformamide, dimethylsulfoxide, or acetonitrile. Other suitablesolvents include tetrahydrofuran, methyl ethyl ketone, and t-butylmethyl ether.

The reaction is conducted at temperatures from about −10 to 100° C.preferably at ambient temperature, and is substantially complete inabout 1 to 48 hours depending on conditions. Optionally, a phasetransfer reagent such as tetrabutylammonium bromide ortetrabutylammonium chloride may be employed.

Intermediate (20) May by dehydrogenated by oxidation with2,3-dichloro-5,6-dicyano-1,4-benzoquinone in a noninterfering solvent toform (21).

Suitable solvents include methylene chloride, chloroform, carbontetrachloride, diethyl ether, methyl ethyl ketone, and t-butyl methylether. Toluene, benzene, dioxane, and tetrahydrofuran are preferredsolvents. The reaction is carried out at a temperature about 0 to 120°C. Temperatures from 50 to 120° C. are preferred. The reaction issubstantially complete in about 1 to 48 hours depending on conditions.

Intermediate (21) may be aminated with ammonia in the presence of anoninterfering solvent to form a(22). Ammonia may be in the form ofammonia gas or an ammonium salt, such as ammonium hydroxide, ammoniumacetate, ammonium trifluoroacetate, ammonium chloride, and the like.Suitable solvents include ethanol, methanol, propanol, butanol,tetrahydrofuran, dioxane, and water. A mixture of concentrated aqueousammonium hydroxide and tetrahydrofuran or methanol is preferred for theinstant process. The reaction is carried out at a temperature about 20to 100° C. Temperatures from 50 to 60° C. are preferred. The reaction issubstantially complete in about 1 to 48 hours depending on conditions.

Alkylation of (22) is achieved by treatment with an alkylating agent ofthe formula XCH₂R⁹ where X is halo and R⁷⁰ is —CO₂R⁷¹, —SO₃R⁷¹,—P(O)(OR⁷¹)₂, or —P(O)(OR⁷¹)H, where R⁷¹ is an acid protecting group ora prodrug function, in the presence of a base in a noninterferingsolvent to form (23). Methyl bromoacetate and t-butyl bromoacetate arethe preferred alkylating agents.

Suitable bases include potassium carbonate, sodium carbonate, lithiumcarbonate, cesium carbonate, sodium bicarbonate, potassium bicarbonate,potassium hydroxide, sodium hydroxide, sodium hydride, potassiumhydride, lithium hydride, and Triton B (N-benzyltrimethylammoniumhydroxide). The reaction may or may not be carried out in the presenceof a crown ether. Cesium carbonate and Triton B are preferred.

The amount of alkylating agent is not critical, however, the reaction isbest accomplished using an excess of alkyl halide relative to thestarting material. The reaction is preferably carried out in an organicsolvent, such as, acetone, dimethylformamide, dimethylsulfoxide, oracetonitrile. Other suitable solvents include tetrahydrofuran, methylethyl ketone, and t-butyl methyl ether.

The reaction is conducted at temperatures from about −10 to 100° C.preferably at ambient temperature, and is substantially complete inabout 1 to 48 hours depending on conditions. Optionally, a phasetransfer reagent such as tetrabutylammonium bromide ortetrabutylammonium chloride may be employed.

Intermediate (23) may be optionally hydrolyzed with a base or acid toform desired product (24) and optionally salified.

Hydrolysis of (23) is achieved using a base such as sodium hydroxide,potassium hydroxide, lithium hydroxide, aqueous potassium carbonate,aqueous sodium carbonate, aqueous lithium carbonate, aqueous potassiumbicarbonate, aqueous sodium bicarbonate, aqueous lithium bicarbonate,preferably sodium hydroxide and a lower alcohol solvent, such as,methanol, ethanol, isopropanol, and the like. Other suitable solventsinclude acetone, tetrahydrofuran, and dioxane.

Alternatively, the acid protecting group may be removed by organic andinorganic acids, such as trifluoroacetic acid and hydrochloric acid withor without a noninterferring solvent. Suitable solvents includemethylene chloride, tetrahydrofuran, dioxane, and acetone. The t-butylesters are preferably removed by neat trifluoroacetic acid.

The reaction is conducted at temperatures from about −10 to 100° C.preferably at ambient temperature, and is substantially complete inabout 1 to 48 hours depending on conditions.

The starting material (16) is prepared by esterifying compound (15) witha alkyl halide=XPG; where X is halo and PG is an acid protecting group,in the presence of a base, preferably potassium carbonate or sodiumcabonate, in a noninterferring solvent, preferably dimethylformamide ordimethylsulfoxide. The preferred alkyl halide is methyl iodide. Thereaction is conducted at temperatures from about 0 to 100° C. preferablyat ambient temperature, and is substantially complete in about 1 to 48hours depending on conditions.

Alternatively the starting material (16) may be prepared by condensationwith an alcohol HOPG, where PG is an acid protecting group, in thepresence of a dehydrating catalyst such as, dicyclohexylcarbodiimide(DCC) or carbonyl diimidazole.

In addition, U.S. Pat. No. 4,885,338 and Jpn. Kokai Tokkyo Koho05286912, November 1993 Hesei teach a method for preparing2-fluoro-5-methoxyaniline derivatives.

R is as defined in Scheme III(b),

R^(3(a)) is as defined in Scheme I(a), above; and

X is halo.

Benzoic acid derivatives (16) (X=Cl, Br, or I) and boronic acidderivative (27) (either commercially available or readily prepared byknown techniques from commercially available starting materials) arecondensed under the general procedure of Miyaura, et al., (Ref 8a) orTrecourt, et al., (Ref 8b) in the presence of a palladium catalyst, suchas Pd(Ph₃P)₄, a base, such as sodium bicarbonate, in an inert solvent,such as THF, toluene or ethanol, to afford compound (28).

Compound (28) is converted to the carbazole product (29) by treatmentwith a trialkyl or triaryl phosphite or phosphine, such as,triethylphosphite or triphenyl phosphine, according to the generalprocedure of Cadogan, et al. (Ref 6).

Compound (29) is N-alkylated with an appropriately substituted alkyl oraryl halide XCH₂R⁴ in the presence of a base, such as sodium hydride orpotassium carbonate, in a noninterfering solvent, such as toluene,dimethylformamide, or dimethylsulfoxide to afford carbazole (30).

Compound (30) is converted to the corresponding amide (22) by treatmentwith boron tribromide or sodium thioethoxide, followed by ammonia or anammonium salt, such as ammonium acetate, in an inert solvent, such aswater or alcohol, or with methylchloroaluminum amide in an inertsolvent, such as toluene, at a temperature between 0 to 110° C.

When R^(3(a)) is substituted at the 8-position with chloro,de-alkylation of (30) with boron tribromide results in de-benzylation ofthe nitrogen as described above. Alkylation may be readily accomplishedin a two step process. First, an O-alkylation by treatment with ahaloalkyl acetate such as methyl bromo acetate using sodium hydride intetrahydrofuran, followed by N-alkylation using for example a base suchas sodium hydride and an appropriately substituted alkyl or aryl halidein dimethoxy formamide. Compound (22) can be converted to productcarbazole product (24) as described previously in Scheme III(b) above.

Conversion to the desired prodrug may be accomplished by techniquesknown to the skilled artisan, such as for example, by treatment with aprimary or secondary halide to make an ester prodrug.

Alternatively, reduction of the nitro group of compound (28) with areducing agent, such as hydrogen in the presence of palladium on carbon,in a noninterfering solvent, such as ethanol, at 1 to 60 atmospheres, ata temperature of 0 to 60° C. affords the corresponding aniline (32).Compound (32) is converted to the carbazole (29) according to thegeneral procedure described by Trecourt, et al. (Ref 8b). The aniline istreated with sulfuric acid and sodium nitrite, followed by sodium azideto form an intermediate azide which is cyclized to carbazole (29) byheating in an inert sovent, such as toluene. Compound (29) is convertedto carbazole product (24) as described previously in Schemes III(b) andIII(c).

References

8) a. N. Miyaura, et al., Synth. Commun. 11, 513 (1981)

b. F. Trecourt, et al., Tetrahedron, 51, 11743 6)

6) J. Cadogan et al., J. Chem. Soc., 4831 (1965)

In an aprotic solvent, preferably tetrahydrofuran, reduction of (40) isachieved using a reducing agent such as aluminum trihydride. Preferably,the reaction is conducted under inert atmosphere such as nitrogen, atroom temperature.

Sulfonylation may be achieved with an appropriate acylating agent in thepresence of an acid scavenger such as triethyl amine.

In a two-step, one-pot process, intermediate (50), prepared as describedin Scheme I(a) above, is first activated with an activating agent suchas carbonyl diimidazole. The reaction is preferably run in an aproticpolar or non-polar solvent such as tetrahydrofuran. Acylation with theactivated intermediate is accomplished by reacting with H₂NSOR¹⁵ in thepresence of a base, preferably diazabicycloundecene.

PG is an acid protecting group;

R²² is (C₁-C₆)alkoxy (C₁-C₆)alkyl is (C1-C₆)alkoxy (C₁-C₆)alkenyl

Starting material (20) is O-alkylated with an alkyl halide or alkenylhalide, using a base such as NaH, in an aprotic polar solvent preferablyanhydrous DMF, at ambient temperature under a nitrogen atmosphere. Theprocess of aromatization from a cyclohexenone functionality to a phenolfunctionality can be performed by treating the tetrahydrocabazoleintermediate (60) with a base such as NaH in the presence of methylbenzenesulfinate in an anhydrous solvent, such as 1,4-dioxane or DMF, toform the ketosulfoxide derivative. Upon heating at about 100° C. for 1-2hours, the ketosulfoxide derivative (60) is converted to the phenolderivative (61). Conversion of the ester (61) to the amide (62) can beachieved by treating a solution of (61) in an aprotic polar solvent suchas tetrahydrofuran with ammonia gas. Phenolic O-alkylation of (62) with,for example, methyl bromoacetate can be carried out in anhydrous DMF atambient temperature using Cs₂CO₃ or K₂CO₃ as a base to form (63).Desired product (64) can be derived from the basic hydrolysis of ester(63) using LiOH or NaOH as a base in an H₂O/CH₃OH/THF solution at 50° C.for 1-2 hours.

When R²² is —(C₁-C₆)alkoxy(C₁-C₆)alkenyl, hydrogenation of the doublebond can be performed by treating (63) in THF using PtO₂ as a catalysisunder a hydrogen atmosphere. Desired product can then be derived asdescribed above in Scheme III(g) from the basic hydrolysis of ester (63)using LiOH or NaOH as a base in an H₂O/CH₃OH/THF solution at 50° C. for1-2 hours.

Compounds of formula I where the A ring is phenyl and the heteroatom inZ is sulfur, oxygen or nitrogen can be prepared as described in SchemesIV(a)-(f), below.

PG is an acid protecting group.

X is halo.

R³(a) is H, —O(C₁-C₄)alkyl, halo, —(C₁-C₆)alkyl, phenyl,—(C₁-C₄)alkylphenyl; phenyl substituted with —(C₁-C₆)alkyl, halo or—CF³; —CH₂OSi(C₁-C₆)alkyl, furyl, thiophenyl, —(C₁-C₆)hydroxyalkyl; or—(CH₂)_(n)R⁸ where R⁸ is H, —NR⁹R¹⁰, —CN or phenyl where R⁹ and R¹⁰ areindependently —(C₁-C₄)alkyl or -phenyl(C₁-C₄)alkyl and n is 1 to 8;

An indole-3-acetic ester (101), Ref 10, is alkylated by treatment withalkalai metal amide and benzyloxymethyl chloride to give (102) which isconverted to the alcohol (103) by catalytic hydrogenation. The alcoholis alkylated to provide the formaldehyde acetal (104) which is cyclizedby Lewis acid to produce the pyrano[3,4-b]indole (105). The ester isconverted to the amide (106) by methylchloroaluminum amide, and then tothe phenol (107) with boron tribromide. The phenol is O-alkylated togive (108) which is hydrolyzed to the acid (109).

10) Dillard, R. et al., J, Med Chem. Vol 39, No. 26, 5119-5136.

PG is an acid protecting group

W is halo, alkyl or aryl sulfonyl

R³(a) is H, —O(C₁-C₄)alkyl, halo, —(C₁-C₆)alkyl, phenyl,—(C₁-C₄)alkylphenyl; phenyl substituted with —(C₁-C₆)alkyl, halo or—CF³; —CH₂OSi(C₁-C₆)alkyl, furyl, thiophenyl, —(C₁-C₆)hydroxyalkyl; or—(CH₂)_(n)R⁸ where R⁸ is H, —NR⁹R¹⁰, —CN or phenyl where R⁹ and R¹⁰ areindependently —(C₁-C₄)alkyl or -phenyl(C₁-C₄)alkyl and n is 1 to 8;

Reaction of this alcohol (103) with aldehyde and acid produces thepyranoindole (110).

Conversion of the hydroxyl function of (103) to a halide or sulfatefunctionality is achieved by treatment with triphenylphosphine and CH₃X(where X is a halogen) to make compounds of formula (111) where X is ahalide; or by treatment with triethylamine and methanesulfonyl chlorideto make the sulfonate. Displacement with the sodium salt of thiol aceticacid gives (114) which in turn is hydrolyzed by base to the thiol (115)which is reacted with an appropriately substituted aldehyde and acid toproduce the thiopyranoindoles (116).

Intermediate (111) may also be reacted with sodium azide to give theazido derivative (112) which is reduced by hydrogen catalytically togive the amine which is converted to the carboline (113) with aldehydeand acid.

Intermediates (113), (110) and (116) may be N-alkylated, using sodiumhydride and an appropriately substituted alkylhalide XCH₂R⁴.

4-Methoxyindole (117) is converted to the indole acetic acid derivative(118) by alkylation with an epoxy propionate. Treatment of (118) with abrominating reagent affords the mixture of bromo isomers (119) and (120)which give the spiro compound (121) upon basic treatment. Heating (121)with benzyl bromide provides a mixture of the isomeric bromo compounds(122) and (123) which react with potassium thioacetate to give a mixtureof isomers from which (124) may be separated. Solvolysis of thethioester produces the thiol (125) which is alkylated to give (126).Lewis acids convert (126) to the thiopyrano[3,4-b]indole (127). Theester function is converted to amide using methylchloroaluminum amide,the methyl ether cleaved by boron tribromide, and the product phenolO-alkylated with bromoacetic ester to give (130) which is hydrolyzed to(131).

X is halo,

R^(3(a)) is as defined in Scheme I(a) above; and

R is —(CH₂)mR⁵.

Protection of the oxygen by treatment of (132) withtert-butyldimethylsilyl chloride and imidazole in an aprotic polarsolvent such as tetrahydrofuran or methylene chloride accomplishes(133).

Alkylation at the 3-position of the indole (133) is achieved bytreatment with n-butyllithum then zinc chloride at temperatures startingat about 10° C. and warming to room temperature, followed by reactionwith an appropriate haloalkyl ester such as methyl or ethylbromoacetate. The reaction is preferably conducted at room temperaturein an appropriate aprotic polar solvent such as tetrahydrofuran.

Alkylation of the indole-nitrogen can then be achieved by reacting (134)with a suitable alkyl halide in the presence of potassiumbis(trimethylsilyl)amide to prepare (135).

The ester functionality of (135) is converted to a trimethylsilylketeneacetal (136) by treatment with potassium bis(trimethylsilyl)amide andtrimethylsilyl chloride. Treatment of the ketene acetal (136) withbis(chloromethyl)sulfide and zinc bromide in methylene chloride affordsthe cyclized product (137). Conversion to amide (138) can beaccomplished by a Weinreb reaction with methylchloroaluminum amide.Removal of the oxygen protecting group with a fluoride source, such astetrabutylammonium fluoride (TBAF), and concommitant reaction of theresulting anion with, for example, ethyl bromoacetate yields the ester(139). Deprotection of the ester yields the desired acid (140).

R^(3(a)) is as described in Scheme I(a) and

R is as described in Scheme IV(d).

Treatment of the ketene acetal (136) with bis(chloromethyl)ether andzinc bromide in methylene chloride affords the cyclized product (141).Conversion to amide (142) can be accomplished by a Weinreb reaction withmethylchloroaluminum amide. Removal of the oxygen protecting group witha fluoride source, such as tetrabutylammonium fluoride, and concommitantreaction of the resulting anion with ethyl bromoacetate yields the ester(143). Deprotection of the ester yields the desired acid (144).

N-alkylation of commercially available 4-methoxy indole (231) underbasic conditions using an alkyl halide affords the N-alkyl indole (232).Acylation with a suitable acid chloride provides the glyoxalate esterproduct (233) which can be reduced with a variety of hydride reducingagents to give intermediate alcohols (234). Conversion of the alcohol toa suitable leaving group and displacement with sulfur nucleophilesaffords the thioether product (235). Conversion to the acid chloride andspontaneous cyclization affords the thioketone product (236). Cleavageof the ester can be effected under basic conditions to give thecorreponding acid which upon formation of the acid chloride and reactionwith an appropriate amine gives the amide product (237). Cleavage of themethyl ether gives the phenol (238) which can be alkylated under basicconditions using alkyl halides to give the O-alkylated product (239).Cleavage of the ester under basic conditions gives the desired product(240). Alternatively, reduction of the benzylic ketone with a hydridereducing agent and subsequent deoxygenation of the resulting alcoholgives the deoxygenated product (244). Cleavage of the oxyacetic esterproceeds under basic conditions to give the desired oxyacetic acid(242).

Compounds where Z is an aromatic or heterocyclic ring containingnitrogen can be prepared as described in Schemes V(a)-(e), below.

Substituted haloaniline (145) is condensed with N-benzyl-3-piperidone toprovide enamine (146). Ring closure is effected by treatment of (146)with palladium (II) acetate and the resultant product is converted to(147) by treatment with cyanogen bromide. Alkylation of (147) isaccomplished by treatment with the appropriate alkyl bromide usingsodium hydride as base. Hydrolysis of this N-alkylated product withbasic hydrogen peroxide under standard conditions provides (148).Demethylation of (148) is carried out by treatment with boron tribromidein methylene chloride. The resulting phenol (149) is converted by thestandard sequence of O-alkylation with methyl bromoacetate in thepresence of a base, hydrolysis with hydroxide to provide theintermediate salt which is then protonated in aqueous acid to providedesired δ-carboline (150).

Ketene acetal (136), prepared as described in Scheme IV(d), is reactedwith benzyl bis(methoxymethyl)amine in the presence of zinc chloride togive the tetrahydro-beta-carboline (151).

Treatment of (151) with lithium hydroxide, neutralization withhydrochloric acid and subsequent treatment with1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride and ammoniaprovides the desilyated amide (152) where R²⁰ is hydrogen, which can bealkylated with, for example, ethylbromoacetate to give ester (153).

Alternatively, treatment of (115) with the appropriate Weinreb reagentprovides amide (152) (R²⁰ is t-butyldimethylsilyl) which is desilylatedwith tetra-n-butylammonium fluoride and alkylated with, for example,ethyl bromoacetate to give ester (153). Lithium hydroxide-mediatedhydrolysis gives acid (154), which may be hydrogenated over anappropriate catalyst in the presence of hydrochloride acid to give thetetrahydro-beta-carboline as the hydrochloride salt(155). Compound (155)may in turn be aromatized by refluxing in carbitol with palladium oncarbon to provide beta-carboline (156).

In a one-pot reaction, indole (133) is successively treated with oneequivalent n-butyllithium, carbon dioxide gas, one equivalent oft-butyllithium, and 1-dimethylamino-2-nitroethene to give (157).Nitroalkene (157) is reduced with lithium aluminum hydride to amine(158), which is cyclized with methyl glyoxylate (Ref. 9) in refluxingethanol to give tetrahydrocarboline (159). Alkylation of both nitrogensof (159) leads to intermediate (160), which is treated with theappropriate Weinreb reagent to provide amide (161). Fluoride-assisteddesilylation and alkylation with, for example, ethyl iodoacetate givesester (162), which may be hydrogenated over a suitable catalyst andbase-hydrolyzed to give acid (163). Aromatization of (163) to carboline(164) is achieved by refluxing in carbitol in the presence ofpalladium-on-carbon.

Reference 9

Kelley, T. R.; Schmidt, T. E.; Haggerty, J. G. A convenient preparationof methyl and ethyl glyoxylate, Synthesis, 1972, 544-5.

The commercially available acid (170) is reduced with lithium aluminumhydride, oxidized with pyridinium chlorochromate, and silylated witht-butyldimethylsilyl chloride to give (171). Treatment with sodium azideprovides azide (172), which is reacted with nitromethane and potassiumhydroxide in ethanol, followed by treatment with acetic anhydride andpyridine to give nitroolefin (173). Heating in xylene inducescyclization to produce indole (174). Alkylation with, for example,benzyl iodide and sodium hydride gives (175), which is hydrogenated inthe presence of palladium-on-carbon to give amine (176). Acylation withthe acid chloride of commercially available oxalacetic acid monoethylester gives (177), which is thermally cyclized to lactam (178).Selective reduction of the lactam carbonyl may be accomplished bytreatment with NaBH₂S₃ to provide amine (179).

Protection of amine (179) with di-t-butyl dicarbonate and pyridineproduces (180), which is converted via the appropriate Weinreb reagentto amide (181). Fluoride-assisted desilylation, alkylation with, forexample, ethyl iodoacetate and potassium carbonate, base hydrolysis, andacid hydrolysis produce the tetrahydro-alpha-carboline (182).

Alternatively, amine (179) may be aromatized by refluxing in carbitol orsome other suitable high boiling solvent to give alpha-carboline (183),which is converted via the appropriate Weinreb reagent to amide (184).Fluoride-assisted desilylation, alkylation with ethyl iodoacetate andpotassium carbonate, and base hydrolysis as described above providesalpha-carboline (185).

Scheme V(e) provides δ-carboline (198) by the indicated sequence ofreactions. N-alkylation of 2-carboethoxyindole (190) followed by astandard two carbon homologation sequence provides 2-(3-propenoicacid)indoles (194). In this sequence, the condensation of aldehyde (193)with malonic acid utilized a mixture of pyridine and piperidine as thebase. After methyl ester formation and hydrogenation (195), ring closure(196) was effected by treatment withbis(2,2,2-trichloroethyl)azodicarboxylate (BTCEAD) followed by zinc inacetic acid. Reduction of the cyclic amide with lithium aluminum hydridefollowed by treatment with trimethylsilylisocyanate provided the urea(197). Conversion to the desired d-carboline (198) was accomplishedunder the usual conditions of demethylation and subsequent alkylationand ester hydrolysis steps.

Reverse indoles, i.e., compounds where B is carbon and D is nitrogen canbe prepared as described in Scheme VI, below.

Aryl hydrazines (200) are condensed with substituted prpionaldehydes toform hydrazones which are cyclized to indoles (201) by treatment withphosphorous trichloride at room temperature (Ref 1). The indoles areN-alkylated on reaction with a base such as sodium hydride and analph-bromo ester to give indoles (202) which are cyclized totetrahydrocarbazoles (203) by Lewis acids (e.g., aluminum chloride) orby radical initiators (e.g., tributyltin hydride). Compounds (203) canbe converted to carbazoles by, for example, refluxing in a solvent suchas carbitol in the presence of Pd/C.

Compounds of formula I wherein A is pyridyl can be prepared as describedin Schemes VII(a)-(b), below.

Commercially available 4-chloroindole (210) is treated with 3equivalents of t-butyllithium followed by carbon dioxide, 1 equivalentof n-butyllithium, 1-dimethylamino-2-nitroethene, and acid to providecarboxylic acid (211), which may be esterified to give (212). Alkylationat the 1-position followed by hydrogenation provides aminoethyl indole(214). Cyclization with phosgene to (215) followed by aromatizationgives carboline (216). Treatment of (216) with the appropriate Weinrebreagent provides amide (217), which may be alkylated with, for example,ethyl bromoacetate and saponified with sodium hydroxide to give thecarboline (218).

R3(a) is as defined in Scheme I(a),

X is halo, and

R is (CH₂)mR⁵.

The 1,3-dione structures (228) are either commercially available orreadily prepared by known techniques from commercially availablestarting materials. Preparation of the aniline derivatives (220) (X=Cl,Br, or I) are accomplished by reducing an appropriately substitutedbenzoic acid derivative to the corresponding aniline by treatment with areducing agent such as SnCl₂ in hydrochloric acid in an inert solventsuch as ethanol or by hydrogenation using hydrogen gas and sulfidedplatinum or carbon or palladium on carbon. The amino group of (228) isprotected with an appropriate protecting group, such as the,carboethoxyl, benzyl, CBZ (benzyloxycarbonyl) or BOC(tert-butoxycarbonyl) protecting group, and the like.

The dione (228) and aniline derivative (220) are condensed according tothe general procedure of Chen, et al., (Ref 10) or Yang, et al., (Ref11), with or without a noninterfering solvent, such as methanol,toluene, or methylene chloride, with or without an acid, such asp-toluenesulfonic acid or trifluoroacetic acid, with or withoutN-chlorosuccinimide and dimethyl sulfide, to afford the coupled product(221).

Compound (221) is cyclized under basic conditions with a copper (I) saltin an inert solvent according to the general procedure of Yang, et al.,(Ref 8). The derivative (221) is treated with a base, such as sodiumhydride, in an inert solvent, such as HMPA, at a temperature between 0and 25° C. A copper (I) salt, such as copper (I) iodide, is added andthe resultant mixture stirred at a temperature between 25 and 150° C.for 1 to 48 hours to afford compound (222).

Compound (221) may also be cyclized according to the general procedureof Chen, et al., (Ref 10). The derivative (221) is treated with a base,such as sodium bicarbonate, and a palladium catalyst, such as Pd(PPh₃)₄,in an inert solvent, such as HMPA, at a temperature between 25 and 150°C. to afford compound (222).

In a preferred method, intermediate (171) is treated with a transitionmetal catalyst, such as Pd(OAc)₂(O-tol)₃P in the presence of a base suchas triethylamine using a cosolvent of DMF/acetonitrile to prepare (222).

Compound (222) is N-alkylated with an appropriately substituted benzylhalide in the presence of a base, such as sodium hydride or potassiumcarbonate, in a noninterfering solvent, such as dimethylformamide ordimethylsulfoxide to afford ketone (223). In a two step, one pot process(222) is aromatized by treatment with acetic acid and palladium oncarbon in a noninterfering solvent, such as carbitol or cymene, followedby treatment with hydrogen gas and palladium on carbon to cleave thenitrogen protecting group and produce the phenolic derivative (224).

The ester (224) is converted to the corresponding amide (225) understandard conditions with ammonia (preferably) or an ammonium salt, suchas ammonium acetate, in an inert solvent, such as water or alcohol,preferably methanol, or with MeClAlNH₂ in an inert solvent, such astoluene, at a temperature between 0 to 110° C. Alkylation of thephenolic oxygen of compound 38 with an appropriate haloester, such asmethyl bromoacetate, in the presence of a base, such as cesiumcarbonate, potassium or sodium carbonate, in an inert solvent, such asdimethylformamide or dimethylsulfoxide affords the ester-amide (226).Other haloesters, such as ethyl bromoacetate, propyl bromoacetate, butylbromoacetate, and the like can also be used to prepare the correspondingesters.

Saponification of compound (226), with lithium hydroxide in an inertsolvent, such as methanol-water, affords (227). The intermediate andfinal products may isolated and purified by conventional techniques suchas chromatography or recrystallization. Regioisomeric products andintermediates can be separated by standard methods, such as,recrystallization or chromatography.

References

10) L.-C. Chen et al., Synthesis 385 (1995)

11) S.-C. Yang et al., Heterocycles, 32, 2399 (1991)

The following list of abreviations are used in the Examples andPreparations.

HCl = hydrochloric acid EtOAc = ethyl acetate DMF = dimethyl formamideTHF = tetrahydrofuran Et₂O = diethyl ether H₂O = water NaOH = sodiumhydroxide EtOH = ethanol Na₂SO₄ = sodium sulfate NaHCO₃ = sodiumbicarbonate celite = diatomaceous earth CH₂Cl₂ = methylene chlorideH₂SO₄ = sulfuric acid MeoH = methanol Rh/Al₂O₃ = rhodium on alumina DDQ= 2,3-dichloro-5,6-dicyano-1,4-benzo- quinone TLC = thin layerchromotography NaH = sodium hydride NH₄OH = ammonium hydroxide LiOH =lithium hydroxide NH₃ = ammonia Cs₂CO₃ = cesium carbonate NH₄oAc =ammonium acetate

The following preparations of intermediates and examples of finalproducts futher illustrate the preparation of the compounds of thisinvention. The examples are illustrative only and are not intended tolimit the scope of the invention in any way.

EXAMPLE 1 Preparation of9-benzyl-5,7-dimethoxy-1,2,3,4-tetrahydrocarbazole-4-carboxylic acidhydrazide

A. Preparation of N-benzyl-3,5-dimethoxyaniline

A solution of 25 gm. (0.163 mol) of 3,5-dimethoxyaniline and 18.3 ml.(0.18 mol) of benzaldehyde in 300 ml. of methanol was cooled inice-water and treated with 10.3 gm. (0.18 mol) of sodiumcyanoborohydride in portions. The solution was stirred and cooled for 3hours, treated with 1-2 gm. of sodium borohydride for 30 minutes,diluted with water and extracted with ethyl acetate. The organic phasewas washed with brine, dried over sodium sulfate, and evaporated invacuo. The residue was chromatographed on silica gel eluting with agradient hexane/15-70% ether to give 9-benzyl-3,5-dimethoxyaniline, 28.0gm., 71%, as an oil.

Elemental Analyses for C₁₅H₁₇NO₂: Calculated: C, 74.05; H, 7.04; N,5.76. Found: C, 74.30; H, 7.12; N, 5.70.

B. Preparation of9-benzyl-5,7-dimethoxy-1,2,3,4-tetrahydrocarbazole-4-carboxylic acidhydrazide

A solution of 9.72 gm of the compound of part A and 4.98 gm of2-carbethoxy-6-bromocyclohexanone (J. Sheehan and C. E. Mumaw,J.Am.Chem.Soc., 72, 2127-2129, (1950).) in 125 ml of benzene wasrefluxed for 72 hours, cooled, filtered, and evaporated in vacuo. Theresidue (12 gm) and 10 gm of zinc chloride were refluxed in 250 ml ofbenzene for 6 hours, cooled and evaporated in vacuo. The residue wastaken up in ethyl acetate, washed with 1N hydrochloric acid, washed withwater, dried over sodium sulfate, and evaporated in vacuo. The residuewas chromatographed on silica gel eluting with a gradient toluene/0-5%ethyl acetate to give compound (5) (R²=5-MeO R³=7-MeO R⁴=phenyl), 1.88gm which was dissolved in 100 ml of ethanol containing 10 ml ofhydrazine hydrate and refluxed for 5 days, cooled, the solutiondecanted, diluted with ethyl acetate, washed with brine, dried oversodium sulfate, and evaporated in vacuo to give title compound, 1.1 gm,60%, mp 189-190° C./CH₂Cl₂-EtOH.

Elemental Analyses for C₂₂H₂₅N₃O₃: Calculated: C, 69.64; H, 6.64; N,11.07. Found: C, 69.59; H, 6.74; N, 10.84.

EXAMPLE 2 Preparation of9-benzyl-5,7-dimethoxy-1,2,3,4-tetrahydrocarbazole-4-carboxamide

A mixture of 980 mg of the compound of example 1, 2 gm of Raney nickelcatalyst, 1-2 ml of hydrazine hydrate, and 125 ml of ethanol wasrefluxed 1 hour, the solution decanted, diluted with ethyl acetate,washed with water, washed with brine, dried over sodium sulfate, andevaporated in vacuo. The residue was chromatographed on silica geleluting with a gradient methylene chloride/1-3% methanol to give titlecompound, 820 mg, 84%, mp 190-192° C./EtOH.

Elemental Analyses for C₂₂H₂₄N₂O₃: Calculated: C, 72.51; H, 6.64; N,7.69. Found: C, 71.88; H, 6.89; N, 7.81.

EXAMPLE 3 Preparation of[9-benzyl-4-carbamoyl-7-methoxy-1,2,3,4-tetrahydrocarbazol-5-yl]oxyaceticacid sodium salt

A. Preparation of9-benzyl-5-hydroxy-7-methoxy-1,2,3,4-tetrahydrocarbazole-4-carboxamide

A solution of 1.75 gm. (4.8 mmol) of the compound of example 6 in 50 ml.of dimethylformamide was mixed with a solution of sodium thioethoxide(13.5 mmol) in 75 ml. of dimethylformamide and then heated at 100° C.for 21 hours. The mixture was cooled, diluted with water, acidified withhydrochloric acid, and extracted with ethyl acetate. The organic phasewas washed with brine, dried over sodium sulfate, and evaporated invacuo. The residue was chromatographed on silica gel eluting with agradient methylene chloride/0-4% methanol to give the sub-titledproduct, 825 mg., 50%, mp 225-7° C./ethanol.

Elemental Analyses for C₂₁H₂₂N₂O₃: Calculated: C, 71.98; H, 6.33; N,7.99. Found: C, 71.71; H, 6.37; N, 7.72.

B. Preparation of[9-benzyl-4-carbamoyl-7-methoxy-1,2,3,4-tetrahydrocarbazol-5-yl]oxyaceticacid ethyl ester

A solution of 700 mg. (2.0 mmol) of the product from Part A in 70 ml. ofdimethylformamide and 15 ml. of tetrahydrofuran was treated with 100 mg.of sodium hydride (60% in mineral oil; 2.5 mmol) for 10 minutes and thenwith 0.3 ml. (2.7 mmol) of ethyl bromoacetate for 3 hours. The mixturewas diluted with ethyl acetate, washed with water, washed with brine,dried over sodium sulfate, and evaporated in vacuo. The residue waschromatographed on silica gel eluting with a gradient methylenechloride/1-2% methanol to give sub-titled product, 670 mg., 77%, mp167-169° C./ether.

Elemental Analyses for C₂₅H₂₈N₂O₅: Calculated: C, 68.79; H, 6.47; N,6.42. Found: C, 69.57; H, 6.39; N, 5.77.

C. Preparation of[9-benzyl-4-carbamoyl-7-methoxy-1,2,3,4-tetrahydrocarbazol-5-yl]oxyaceticacid

A suspension of 650 mg. of the product from Part B in 20 ml. oftetrahydrofuran and 70 ml. of ethanol was treated with 5 ml. of 2Nsodium hydroxide and the resulting solution was stirred for 15.5 hours.The solution was diluted with ethyl acetate and water and acidified withhydrochloric acid. The organic phase was washed with brine, dried oversodium sulfate, concentrated in vacuo, and filtered to give titleproduct, 540 mg., 87%, mp 251-254° C.

Elemental Analyses for C₂₃H₂₄N₂O₅: Calculated: C, 67.63; H, 5.92; N,6.86. Found: C, 67.73; H, 5.74; N, 6.82.

D. Preparation of[9-benzyl-4-carbamoyl-7-methoxy-1,2,3,4-tetrahydrocarbazol-5-yl]oxyaceticacid sodium salt

A suspension of 120 mg. of the product from Part C in 20 mL of ethanolwas treated with 0.15 mL of 2.0 N sodium hydroxide and warmed untildissolved. The resulting solution was concentrated in vacuo, dilutedwith ethyl acetate and again concentrated in vacuo and left to standovernight. The precipitate was filtered and air dried to give the titleproduct as an amorphous solid, 80 mg, 63%.

Elemental Analyses for C₂₃H₂₃NaN₂O₅.0.4H₂O: Calculated: C, 63.18; H,5.39; N, 6.40. Found: C, 63.31; H, 5.48; N, 6.25.

EXAMPLE 4 Preparation of[9-benzyl-4-carbamoyl-7-methoxycarbazol-5-yl]oxyacetic acid

A mixture of 430 mg. of the product from Example 3 Part D, 2.0 gm. of 5%Pd/C, and 20 mL of carbitol was heated to reflux and refluxed for 21hours, cooled, and filtered. The filtrate was diluted with water,acidified with hydrochloric acid, and extracted well with ethyl acetate.The organic phase was washed with brine, dried over sodium sulfate andevaporated in vacuo. The residue was triturated with dichloromethane andfiltered to remove solid tetrahydrocarbazole. The filtrate wasevaporated in vacuo to give the title product, 125 mg, 31%.

Elemental Analyses for C₂₃H₂₀N₂O₅.0.4H₂O: Calculated: C, 67.11; H, 5.09;N, 6.81. Found: C, 67.25; H, 5.19; N, 6.75.

EXAMPLE 5 Preparation of methyl[9-benzyl-4-carbamoyl-7-methoxycarbazol-5-yl]oxyacetic acid

A. Preparation of 9-benzyl-4-carbamoyl-5,7-dimethoxycarbazole

A mixture of 2.0 gm. of the product from Example 2, 2 gm. of 5% Pd/C,and 100 mL of carbitol was refluxed for 17 hours,filtered while stillhot, and the solid washed well with ethyl acetate. The combinedfiltrates were washed with water, washed with brine, dried over sodiumsulfate, and evaporated in vacuo to give subtitled product, 1.4 gm.,70%, mp 240-243° C.

Elemental Analyses for C₂₂H₂₀N₂O₃: Calculated: C, 73.32; H, 5.59; N,7.77. Found: C, 74.26; H, 5.73; N, 8.04.

B. Preparation of 9-benzyl-4-carbamoyl-5-hydroxy-7-methoxycarbazole

A solution of 1.2 gm. (3.3 mmol) of the product from Part A and 10 mmolof sodium ethanethiolate in 100 mL of dimethylformamide was heated at100° C. for 42 hours, cooled, diluted with water, and the pH adjusted to5-6 with hydrochloric acid. The mixture was extracted with ethylacetate, the organic phase was washed with water, washed with brine,dried over sodium sulfate, and evaporated in vacuo. The residue waschromatographed on silica gel eluting with ethyl acetate to giveproduct, 550 mg., 48%, mp 234-236° C. dec.

Elemental Analyses for C₂₁H₁₈N₂O₃: Calculated: C, 72.82; H, 5.24; N,8.09. Found: C, 72.54; H, 5.19; N, 8.04.

C. Preparation of methyl[9-benzyl-4-carbamoyl-7-methoxycarbazol-5-yl]oxyacetic acid

A solution of 430 mg. (1.2 mmol) of the product from Part B in 40 mL ofdimethylformamide and a few mLs of tetrahydrofuran was treated with 60mg. of sodium hydride (60% in mineral oil; 1.5 mmol) for 15 minutes andthen with 0.13 mL (1.4 mmol) of methylbromoacetate for 16 hours, dilutedwith ethyl acetate, washed with water, washed with brine, dried oversodium sulfate, and evaporated in vacuo. The residue was chromatographedon silica gel eluting with a gradient dichloromethane/1-3% methanol togive title compound, 320 mg., 62%, mp 170-172° C.

Elemental Analyses for C₂₄H₂₂N₂O₅: Calculated: C, 68.89; H, 5.30; N,6.69. Found: C, 68.64; H, 5.41; N, 6.57.

D. Preparation of [9-benzyl-4-carbamoyl-7-methoxycarbazol-5-yl]oxyaceticacid sodium salt

To a suspension of 60 mg (0.15mmol) of the product from Part C in 30 mLof ethanol was added 0.075 mL of 2.0 N sodium hydroxide. The mixture washeated until solution, cooled, concentrated in vacuo, diluted with ethylacetate, concentrated in vacuo, cooled, and filtered to give product,amorphous solid, 50 mg., 80%. MS (FAB+) 427.2: MS (ion spray) +Q1 405.5,−Q1 403.5

EXAMPLE 6 Preparation of9-benzyl-7-methoxy-5-cyanomethyloxy-1,2,3,4-tetrahydrocarbazole-4-carboxamide

A solution of 1.47 gram (4.19 mmol) of the product from Example 3, PartA in 146 ml. of dimethylformamide and 31 ml. tetrahydrofuran was treatedwith 210 mg. of sodium hydride (60% in mineral oil; 5.24 mmol) for 10minutes and then with 0.39 ml. (0.66 mmol) of bromoacetonitrile for 3.5hours. The mixture was diluted with ethyl acetate, washed with water,washed with brine, dried over sodium sulfate, and evaporated in vacuo.The residue was chromatographed on silica gel eluting with a gradient of0 to 4% methanol in methylene chloride to give the titled product, 1.34gram, 82%.

Elemental analysis for C₂₃H₂₃N₃O₃: Calculated: C, 70.93; H, 5.95; N,10.79. Theory: C, 70.67; H, 6.06; N, 10.83.

EXAMPLE 7 Preparation of9-benzyl-7-methoxy-5-(1H-tetrazol-5-yl-methyl)oxy)-1,2,3,4-tetrahydrocarbazole-4-carboxamide

A portion of the compound of Example 6, 0.45 gram (1.16 mmol) was heatedwith 5 ml. tri-n-butyl in hydride at 95° C. for 1 hour. The reaction wasthen added to a mixture of 125 ml. acetonitrile, 25 ml. tetrahydrofuran,and 50 ml. acetic acid and stirred for 2 hours. The mixture wasextracted 4 times with hexane and the residue evaporated in vacuo.Crystallization from acetone and hexane afforded the titled compound,0.30 gram, 60%.

Elemental analysis for C₂₃H₂₄N₆O₃: Calculated: C, 63.88; H, 5.59; N,19.43. Theory: C, 64.06; H, 5.64; N, 19.28.

Preparation 1 Preparation of5-Carbomethoxy-1,2-dihydro-2-methyl-9H-carbazol-4(3H)-one from2-bromo-3-nitrobenzoic acid

a) Methyl 2-bromo-3-nitrobenzoate

A solution of 2-bromo-3-nitrobenzoic acid (28.4 g, 115.0 mM),iodomethane (18.0 g, 127 mM), and potassium carbonate (19.0 g, 137.4 mM)in 100 mL dimethylformamide was stirred at room temperature for 72hours. The mixture was poured into 1.5 liters of water. The resultantprecipitate was collected by filtration and dried in vacuo to afford28.79 g (96%) of methyl 2-bromo-3-nitrobenzoate as a white solid. ¹H NMR(DMSO-d6) δ8.3 (dd, 1H, J=1 and 8 Hz), 7.9 (dd, 1H, J=1 and 8 Hz), 7.7(t, 1H, J=8 Hz), and 3.9 (s, 3H). IR (KBr, cm⁻¹) 2950, 1738, 1541, 1435,1364, 1298, and 1142. MS (FD) m/e 259, 261.

Elemental Analyses for C₈H₆NO₄Br: Calculated: C, 36.95; H, 2.33; N,5.39. Found: C, 37.14; H, 2.37; N, 5.45.

b) Methyl 2-bromo-3-aminobenzoate

Hydrogen gas was passed through a solution of methyl2-bromo-3-nitrobenzoate (0.20 g, 0.77 mM) and 0.1 g of 3% sulfidedplatinum on carbon in 25 mL ethyl acetate for 24 hours at roomtemperature. The catalyst was removed by filtration through celite.Concentration of the filtrate afforded 0.175 g (99%) of methyl2-bromo-3-aminobenzoate as a yellow oil. ¹H NMR (CDCl₃) δ7.15 (t, 1H,J=8 Hz), 7.1 (dd, 1H, J=1 and 8 Hz), 6.8 (dd, 1H, J=1 and 8 Hz), and3.95 (s, 3H). IR (CHCl₃, cm⁻¹) 3550, 3380, 2980, 2900, 1729, 1613, 1465,1451, 1434, 1324, 1266, and 1025. MS (FD) m/e 230, 232.

Elemental Analyses for C₈H₈NO₂Br: Calculated: C, 41.77; H, 3.51; N,6.09. Found: C, 42.01; H, 3.29; N, 6.00.

c) 3-(3-Carbomethoxy-2-bromoanilino)-5-methyl-cyclohex-2-en-1-one

A mixture of methyl 2-bromo-3-aminobenzoate (10.2 g, 44.3 mM) and5-methyl-1,3-cyclohexanedione (6.15 g, 48.7 mM) was heated at 125° C.under a stream of nitrogen for 1.5 hours. The resultant solid wastriturated with ethyl acetate to afford 9.98 g (67%) of3-(3-carbomethoxy-2-bromoanilino)-5-methyl-cyclohex-2-en-1-one. ¹H NMR(CDCl₃) δ7.55 (m, 2H), 7.35 (dd, J=8 and 8 Hz, 1H), 6.4 (bs, 1H), 5.55(s, 1H), 3.95 (s, 3H), 2.6-2.0 (m, 5H), 1.15 (d, J=7 Hz, 3H). MS (ES)m/e 338, 340.

d) 5-Carbomethoxy-1,2-dihydro-2-methyl-9H-carbazol-4(3H)-one

A suspension of3-(3-carbomethoxy-2-bromoanilino)-5-methyl-cyclohex-2-en-1-one (9.98 g,29.5 mM), palladium acetate (0.66 g, 2.95 mM), tri-o-tolylphosphine (1.8g, 5.9 mM), and triethylamine (5.10 ml, 36.6 mM) in 75 mL acetonitrilewas heated at reflux for 3 hours. The solvent was removed in vacuo. Theresidue was dissolved in methylene chloride, washed with 1 N HCl, thenwith saturated brine, dried over anhydrous sodium sulfate, filtered, andconcentrated to afford 11 g of crude product. Purification by HPLC onsilica gel (elution with gradient methylene chloride/ethyl acetate)afforded 5.7 g (75%) of5-carbomethoxy-1,2-dihydro-2-methyl-9H-carbazol-4(3H)-one. ¹H NMR(CDCl₃) δ9.5 (bs, 1H), 7.4 (d, J=8 Hz, 1H), 7.35 (d, J=8 Hz, 1H), 7.2(dd, J=8 and 8 Hz, 1H), 4.0 (s, 3H), 2.9 (dd, J=13 and 4 Hz, 1H), 2.55(m, 2H), 2.4 (m, 1H), 2.25 (dd, J=15 and 9 Hz, 1H), 1.05 (d, J=7 Hz,3H). MS (ES) m/e 226, 258.

EXAMPLE 8 Preparation of{9-[(phenyl)methyl]-5-carbamoyl-2-methyl-carbazol-4-yl}oxyacetic acid

A.9-[(Phenyl)methyl]-5-carbomethoxy-2-methyl-1,2-dihydrocarbazol-4(3H)-one

A suspension of5-carbomethoxy-1,2-dihydro-2-methyl-9H-carbazol-4(3H)-one (2.0 g, 7.77mM), benzyl bromide (0.94 ml, 7.93 mM), and potassium carbonate (2.15 g,15.5 mM) in 39 mL DMF was stirred at room temperature for 22 hours. Themixture was diluted with ethyl acetate and 1N HCl. The layers wereseparated and the aqueous layer extracted with ethyl acetate. Thecombined ethyl acetate layers were extracted with 1N HCl twice, oncewith water and once with brine. After drying (NaSO₄), evaporation invacuo afforded 2.61 g (97%) of9-[(phenyl)methyl]-5-carbomethoxy-2-methyl-1,2-dihydrocarbazol-4(3H)-one.¹H NMR (CDCl₃) δ7.6-7.4 (m, 6H), 7.0 (m, 2H), 5.4 (s, 2H), 4.05 (s, 3H),3.0 (m, 1H), 2.65-2.45 (m, 3H), 2.3 (dd, J=15 and 9 Hz, 1H), 1.1 (d, J=7Hz, 3H). MS (ES) m/e 316, 348.

B. 9-[(Phenyl)methyl]-2-methyl-4-hydroxy-5-carbomethoxy carbazole

A solution of the9-[(phenyl)methyl]-5-carbomethoxy-2-methyl-1,2-dihydrocarbazol-4(3H)-one(1.30 g, 3.74 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (0.93 g,4.12 mM) in 37 mL of toluene was stirred between 80-90° C. for 5 hours.The mixture was purified by column chromatography on silica gel (elutionwith methylene chloride) to afford 270 mg (21%) of the9-[(phenyl)methyl]-2-methyl-4-hydroxy-5-carbomethoxy carbazole. ¹H NMR(CDCl₃) δ10.45 (s, 1H), 8.0 (d, J=8 Hz, 1H), 7.55 (d, J=8 Hz, 1H), 7.4(dd, J=8 and 8 Hz, 1H), 7.3 (m, 3H), 7.05 (m, 2H), 6.65 (s, 1H), 6.6 (s,1H), 5.5 (s, 2H), 4.1 (s, 3H), 2.45 (s, 3H). MS (ES) m/e 314, 346.

C. 9-[(Phenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole

A solution of the 9-[(phenyl)methyl]-2-methyl-4-hydroxy-5-carbomethoxycarbazole (470 mg, 1.36 mM) in 20 ml THF and 80 mL concentrated aqueousammonium hydroxide was sonicated for 6 hours at 30-40° C. Theprecipitated solid was filtered and triturated with Et₂O to afford 200mg (44%) of 9-[(phenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole.¹H NMR (DMSO-d6) δ10.5 (s, 1H), 8.8 (bs, 1H), 8.4 (bs, 1H), 7.75 (m,1H), 7.4 (m, 2H), 7.25 (m, 3H), 7.1 (m, 2H), 6.95 (s, 1H), 6.45 (s, 1H),5.65 (s, 2H), 2.4 (s, 3H). MS (ES) m/e 314, 331.

D. {9-[(Phenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester

60% Sodium hydride in mineral oil (30.4 mg, 0.76 mM) was added to asolution of 9-[(phenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole(202 mg, 0.61 mM) in 21 mL DMF and 4.6 ml THF. After 10 minutes, methylbromoacetate (77 μl, 0.482 mM) was added and the resultant mixturestirred at room temperature for 1.25 hours. The mixture was diluted withethyl acetate and washed with H₂O. The aqueous layer was extracted withethyl acetate. The combined organic layers were extracted with saturatedbrine, dried over sodium sulfate, filtered, and concentrated. Theresidue was purified by column chromatography on silica gel (elutionwith ethyl acetate) to afford 184 mg (75%) of{9-[(phenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester. ¹H NMR (DMSO-d6) δ7.55 (d, 1H, J=8 Hz), 7.5 (bs, 1H),7.4-7.15 (m, 9H), 6.45 (s, 1H), 5.7 (s, 2H), 4.9 (s, 2H), 3.75 (s, 3H),2.4 (s, 3H). MS (FD) m/e 386, 403.

Elemental Analyses for C₂₄H₂₂N₂O₄: Calculated: C, 71.63; H, 5.51; N,6.96. Found: C, 71.74; H, 5.81; N, 6.69.

E. {9-[(Phenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid

A solution of the{9-[(phenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester (83.5 mg, 0.207 mM) and 1.0 mL (2.0 mM) of 2 N NaOH in 10mL of ethanol was stirred for 45 minutes at 25° C. The resultant whiteprecipitate was collected by filtration, washed with a small amount ofEtOH, then dried in vacuo to afford 48 mg (56%) of the{9-[(phenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acidsodium salt as a white powder. MS (ES) m/e 314, 372, 389, 411. Thefiltrate was acidified with 1N HCl to pH=1. After cooling to 5° C., theresultant white precipitate was collected by filtration, washed withwater, then dried in vacuo to afford 24 mg (29%){9-[(phenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyacetic acid. ¹HNMR (DMSO-d6) δ11.2 (bs, 1H), 7.8 (bs, 1H), 7.6 (d, J=8 Hz, 1H), 7.45(bs, 1H), 7.4-7.05 (m, 8H), 6.45 (s, 1H), 5.65 (s, 2H), 4.9 (s, 2H), 2.4(s, 3H). MS (ES) m/e 314, 372, 389.

Elemental Analyses for C₂₃H₂₀N₂O₄: Calculated: C, 71.12; H, 5.19; N,7.21. Found: C, 71.33; H, 5.47; N, 7.19.

EXAMPLE 9 Preparation of{9-[(3-fluorophenyl)methyl]-5-carbamoyl-2-methyl-carbazol-4-yl}oxyaceticacid

A.9-[(3-Fluorophenyl)methyl]-5-carbomethoxy-2-methyl-1,2-dihydrocarbazol-4(3H)-one

A suspension of5-carbomethoxy-1,2-dihydro-2-methyl-9H-carbazol-4(3H)-one (1.0 g, 3.89mM), 3-fluorobenzyl bromide (0.48 ml, 3.97 mM), and potassium carbonate(1.07 g, 7.78 mM) in 20 mL DMF was stirred at room temperature for 22hours. The mixture was diluted with EtOAc and 1N HCl. The layers wereseparated and the aqueous extracted with EtOAc. The combined EtOAclayers were extracted with 1N HCl, water, then brine. After drying(Na₂SO₄), evaporation in vacuo afforded 1.38 g (97%) of the9-[(3-fluorophenyl)methyl]-5-carbomethoxy-2-methyl-1,2-dihydrocarbazol-4(3H)-one.¹H NMR (CDCl₃) δ7.4-7.2 (m, 5H), 7.0 (m, 1H), 6.75 (m, 2H), 5.4 (s, 2H),4.05 (s, 3H), 3.0 (m, 1H), 2.65-2.45 (m, 3H), 2.3 (dd, J=15 and 9 Hz,1H), 1.1 (d, J=7 Hz, 3H). MS (ES) m/e 334, 366.

B. 9-[(3-Fluorophenyl)methyl]-2-methyl-4-hydroxy-5-carbomethoxycarbazole

A solution of the9-[(3-fluorophenyl)methyl]-5-carbomethoxy-2-methyl-1,2-dihydrocarbazol-4(3H)-one(1.37 g; 3.75 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (0.94 g,4.13 mM) in 38 mL of toluene was stirred between 80-90° C. for 3 hours.The mixture was purified by column chromatography on silica gel (elutionwith methylene chloride) to afford 0.33 g (24%) of9-[(3-fluorophenyl)methyl]-2-methyl-4-hydroxy-5-carbomethoxy carbazole.¹H NMR (CDCl₃) δ10.45 (s, 1H), 8.0 (d, J=8 Hz, 1H), 7.55 (d, J=8 Hz,1H), 7.4 (dd, J=8 and 8 Hz, 1H), 7.3 (m, 2H), 6.95 (m, 1H), 6.85 (d, J=8Hz, 1H), 6.75 (m, 1H), 6.65 (s, 1H), 5.5 (s, 2H), 4.1 (s, 3H), 2.45 (s,3H). MS (ES) m/e 332, 364.

C. 9-[(3-Fluorophenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole

A solution of the9-[(3-fluorophenyl)methyl]-2-methyl-4-hydroxy-5-carbomethoxy carbazole(0.33 g, 0.91 mM) in 14 ml THF and 54 mL concentrated aqueous ammoniumhydroxide was sonicated for 6.5 h at 30-40° C. The precipitated solidwas filtered, washed with water, and triturated with 35 ml Et₂O toafford 182 mg (57%) of9-[(3-fluorophenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole. ¹HNMR (DMSO-d6) δ10.5 (s, 1H), 8.8 (bs, 1H), 8.4 (bs, 1H), 7.75 (m, 1H),7.4 (m, 2H), 7.25 (m, 1H), 7.05 (m, 1H), 6.9 (m, 2H), 6.85 (d, J=8 Hz,1H), 6.45 (s, 1H), 5.65 (s, 2H), 2.4 (s, 3H). MS (ES) m/e 332, 349.

D.{9-[(3-Fluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester

60% Sodium hydride in mineral oil (25.9 mg, 0.65 mM) was added to asolution of 9-[(3-fluorophenyl)methyl]-2-methyl-4-hydroxy-5-carbamoylcarbazole (181 mg, 0.52 mM) in 18 mL DMF and 3.9 ml THF. After 10minutes, methyl bromoacetate (66 μl, 0.70 mM) was added and theresultant mixture stirred at room temperature for 1.25 hours. Themixture was diluted with ethyl acetate and washed with H₂O. The aqueouslayer was extracted with ethyl acetate. The combined organic layers wereextracted with saturated brine, dried over sodium sulfate, filtered, andconcentrated. The residue was purified by column chromatography onsilica gel (elution with methylene chloride/acetone gradient) to afford170 mg (78%) of the{9-[(3-fluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester. ¹H NMR (DMSO-d6) δ7.55 (d, 1H, J=8 Hz), 7.5 (bs,1H), 7.4-7.25 (m, 2H), 7.2 (bs, 1H), 7.05 (m, 3H), 6.95 (d, J=8 Hz, 1H),6.9 (d, J=8 Hz), 6.45 (s, 1H), 5.65 (s, 2H), 4.9 (s, 2H), 3.75 (s, 3H),2.4 (s, 3H). MS (FD) m/e 404, 421.

Elemental Analyses for C₂₄H₂₁FN₂O₄: Calculated: C, 68.56; H, 5.03; N,6.66. Found: C, 67.75; H, 4.95; N, 6.33.

E.{9-[(3-Fluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid

A solution of{9-[(3-fluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester (68.3 mg, 0.162 mM) and 0.81 mL (1.6 mM) of 2 N NaOHin 8.1 mL of ethanol was stirred for 30 minutes at 25° C. The resultantwhite precipitate was collected by filtration, washed with a smallamount of EtOH, then dried in vacuo to afford 11 mg (16%) of{9-[(3-fluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid, sodium salt as a white powder. The filtrate was acidified with 1NHCl to pH=2. After cooling to 5° C., the resultant white precipitate wascollected by filtration, washed with water, then dried in vacuo toafford 31 mg (47%){9-[(3-fluorophenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid. ¹H NMR (DMSO-d6) δ7.75 (bs, 1H), .7.6 (d, 1H, J=8 Hz), 7.45 (bs,1H), 7.4-7.25 (m, 2H), 7.05 (m, 3H), 6.95 (d, J=8 Hz, 1H), 6.9 (d, J=8Hz, 1H), 6.45 (s, 1H), 5.65 (s, 2H), 4.8 (s, 2H), 2.4 (s, 3H). MS (ES)m/e 390, 407. Recrystallization from acetone/hexane provided ananalytical sample:

Elemental Analyses for C₂₃H₁₉FN₂O₄: Calculated: C, 67.97; H, 4.71; N,6.89. Found: C, 68.21; H, 4.93; N, 7.16.

EXAMPLE 10 Preparation of{9-[(3-methylphenyl)methyl]-5-carbamoyl-2-methyl-carbazol-4-yl}oxyaceticacid

A.9-[(3-Methylphenyl)methyl]-5-carbomethoxy-2-methyl-1,2-dihydrocarbazol-4(3H)-one

A suspension of5-carbomethoxy-1,2-dihydro-2-methyl-9H-carbazol-4(3H)-one (1.0 g, 3.89mM), 3-methylbenzyl bromide (0.54 ml, 3.97 mM), and potassium carbonate(1.07 g, 7.78 mM) in 20 mL DMF was stirred at room temperature for 19hours. The mixture was diluted with EtOAc and 1N HCl. The layers wereseparated and the aqueous layer extracted with EtOAc. The combined EtOAclayers were extracted with 1N HCl, water, then brine. After drying(NaSO₄), evaporation in vacuo afforded 1.41 g (100%) of9-[(3-methylphenyl)methyl]-5-carbomethoxy-2-methyl-1,2-dihydrocarbazol-4(3H)-one.¹H NMR (CDCl₃) δ7.4-7.05 (m, 6H), 6.8 (m, 1H), 5.3 (s, 2H), 4.05 (s,3H), 3.0 (m, 1H), 2.7-2.3 (m, 4H), 2.3 (s, 1H), 1.2 (d, J=7 Hz, 3H). MS(ES) m/e 362.

B. 9-[(3-Methylphenyl)methyl]-2-methyl-4-hydroxy-5-carbomethoxycarbazole

To a solution of9-[(3-methylphenyl)methyl]-5-carbomethoxy-2-methyl-1,2-dihydrocarbazol-4(3H)-one(1.41 g, 3.89 mM) in 13 ml dioxane was added 60% sodium hydride inmineral oil (0.36 g, 8.95 mM). The reaction was stirred 6 minutes, thenmethyl benzenesulfinate (0.81 ml, 6.22 mM) was added. The reaction wasstirred an additional 6 hours, then diluted with 20 ml dioxane and 0.51ml acetic acid. The mixture was refluxed 30 minutes, diluted with ethylacetate, and extracted with saturated NaHCO₃, brine, then water. Afterdrying (NaSO₄), evaporation in vacuo afforded 2.30 g. The mixture waspurified by column chromatography on silica gel (elution withtoluene/methylene chloride) to afford 0.92 g (66%) of9-[(3-methylphenyl)methyl]-2-methyl-4-hydroxy-5-carbomethoxy carbazole.¹H NMR (CDCl₃) δ10.45 (s, 1H), 8.0 (d, J=8 Hz, 1H), 7.55 (d, J=8 Hz,1H), 7.4 (dd, J=8 and 8 Hz, 1H), 7.4 (dd, J=8 and 8 Hz, 1H), 7.05 (d,J=8 HZ, 1H), 6.9 (s, 1H), 6.85 (d, J=8 Hz, 1H), 6.75 (s, 1H), 6.7 (s,1H), 5.45 (s, 2H), 4.1 (s, 3H), 2.4 (s, 3H), 2.25 (s, 3H). MS (ES) m/e328, 360.

C. 9-[(3-Methylphenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole

A solution of9-[(3-methylphenyl)methyl]-2-methyl-4-hydroxy-5-carbomethoxy carbazole(0.92 g, 2.56 mM) in 38 ml THF and 154 mL concentrated aqueous ammoniumhydroxide was sonicated for 6 h at 30-40° C. The precipitated solid wasfiltered, washed with water to afford 0.55 g (63%) of9-[(3-methylphenyl)methyl]-2-methyl-4-hydroxy-5-carbamoyl carbazole. ¹HNMR (DMSO-d6) δ10.5 (s, 1H), 8.8 (bs, 1H), 8.4 (bs, 1H), 7.75 (m, 1H),7.4 (m, 2H), 7.15 (dd, J=8 and 8 Hz, 1H), 7.05 (m, 1H), 7.0 (s, 1H), 6.9(s, 1H), 6.8 (d, J=8 Hz, 1H), 6.45 (s, 1H), 5.65 (s, 2H), 2.4 (s, 3H).,2.2 (s, 3H). MS (ES) m/e 328, 345.

D.{9-[(3-Methylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester

60% Sodium hydride in mineral oil (79.8 mg, 2.0 mM) was added to asolution of 9-[(3-methylphenyl)methyl]-2-methyl-4-hydroxy-5-carbamoylcarbazole (0.55 g, 1.60 mM) in 56 mL DMF and 12 ml THF. After 10minutes, methyl bromoacetate (0.20 ml, 2.16 mM) was added and theresultant mixture stirred at room temperature for 1 hour. The mixturewas diluted with ethyl acetate and washed with H₂O. The aqueous layerwas extracted with ethyl acetate. The combined organic layers wereextracted with saturated brine, dried over sodium sulfate, filtered, andconcentrated. The residue was purified by column chromatography onsilica gel (elution with methylene chloride/acetone gradient) to afford0.51 g (76%) of{9-[(3-methylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester. ¹H NMR (DMSO-d6) δ7.5 (m, 2H), 7.35 (dd, J=8 and 8Hz, 1H), 7.2-7.1 (m, 2H), 7.05-6.95 (m, 4H), 6.85 (d, J=8 Hz, 1H), 6.45(s, 1H), 5.6 (s, 2H), 4.9 (s, 2H), 3.75 (s, 3H), 2.4 (s, 3H), 2.2 (s,3H). MS (FD) m/e 400, 417.

Elemental Analyses for C₂₅H₂₄N₂O₄: Calculated: C, 72.10; H, 5.81; N,6.73. Found: C, 71.94; H, 5.71; N, 6.96.

E.{9-[(3-Methylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid

A solution of{9-[(3-methylphenyl)methyl)-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester (0.12 g, 0.288 mM) and 1.4 mL (2.8 mM) of 2 N NaOH in14 mL of ethanol was stirred for 30 minutes at 25° C. The reaction wasacidified with 1N HCl to pH=2. After stirring 1 hour, the resultantwhite precipitate was collected by filtration, washed with water, thendried in vacuo to afford 114 mg (95%){9-[(3-methylphenyl)methyl]-2-methyl-5-carbamoylcarbazol-4-yl}oxyaceticacid. ¹H NMR (DMSO-d6) δ11.1 (bs, 1H), 7.75 (bs, 1H), 7.6 (d, J=8 Hz,1H), 7.45 (bs, 1H), 7.35 (dd, J=8 and 8 Hz, 1H), 7.2-7.0 (m, 5H), 6.85(d, J=8 Hz, 1H), 6.45 (s, 1H), 5.6 (s, 2H), 4.8 (s, 2H), 2.4 (s, 3H),2.2 (s, 3H). MS (ES) m/e 386, 403. Recrystallization from acetone/hexaneprovided an analytical sample:

Elemental Analyses for C₂₄H₂₂N₂O₄: Calculated: C, 71.63; H, 5.51; N,6.96. Found: C, 71.88; H, 5.65; N, 7.20.

Preparation 2 Preparation of5-Carbomethoxy-1,2-dihydro-2-(4-trifluoromethylphenyl)-9H-carbazol-4(3H)-onefrom 2-bromo-3-nitrobenzoic acid

a) Methyl 2-bromo-3-nitrobenzoate

A solution of 2-bromo-3-nitrobenzoic acid (28.4 g, 115.0 mM),iodomethane (18.0 g, 127 mM), and potassium carbonate (19.0 g, 137.4 mM)in 100 mL DMF was stirred at room temperature for 72 hours. The mixturewas poured into 1.5 liters of H₂O. The resultant precipitate wascollected by filtration and dried in vacuo to afford 28.79 g (96%) ofmethyl 2-bromo-3-nitrobenzoate as a white solid. ¹H NMR (DMSO-d6) δ8.3(dd, 1H, J=1 and 8 Hz), 7.9 (dd, 1H, J=1 and 8 Hz), 7.7 (t, 1H, J=8 Hz),and 3.9 (s, 3H). IR (KBr, cm⁻¹) 2950, 1738, 1541, 1435, 1364, 1298, and1142. MS (FD) m/e 259, 261.

Elemental Analyses for C₈H₆NO₄Br: Calculated: C, 36.95; H, 2.33; N,5.39. Found: C, 37.14; H, 2.37; N, 5.45.

b) Methyl 2-bromo-3-aminobenzoate

Hydrogen gas was passed through a solution of methyl2-bromo-3-nitrobenzoate (0.20 g, 0.77 mM) and 0.1 g of 3% sulfidedplatinum on carbon in 25 mL ethyl acetate for 24 hours at roomtemperature. The catalyst was removed by filtration through celite.Concentration of the filtrate afforded 0.175 g (99%) of methyl2-bromo-3-aminobenzoate as a yellow oil. ¹H NMR (CDCl₃) δ7.15 (t, 1H,J=8 Hz), 7.1 (dd, 1H, J=1 and 8 Hz), 6.8 (dd, 1H, J=1 and 8 Hz), and3.95 (s, 3H). IR (CHCl₃, cm⁻¹) 3550, 3380, 2980, 2900, 1729, 1613, 1465,1451, 1434, 1324, 1266, and 1025. MS (FD) m/e 230, 232.

Elemental Analyses for C₈H₈NO₂Br: Calculated: C, 41.77; H, 3.51; N,6.09. Found: C, 42.01; H, 3.29; N, 6.00.

c)3-(3-Carbomethoxy-2-bromoanilino)-5-(4-trifluoromethylphenyl-cyclohex-2-en-1-one

A mixture of methyl 2-bromo-3-aminobenzoate (10.2 g, 44.3 mM) and5-(4-trifluoromethylphenyl)-1,3-cyclohexanedione (1.77 g, 6.93 mM) washeated at 150° C. under a stream of nitrogen for 20 minutes. Theresultant solid was triturated with 4:1 EtOAc/Et₂O to afford 2.18 g(74%) of3-(3-carbomethoxy-2-bromoanilino)-5-(4-trifluoromethylphenyl)-cyclohex-2-en-1-one.¹H NMR (DMSO-d6) δ8.9 (s, 1H), 7.75-7.5 (m, 7H), 3.9 (s, 3H), 3.5 (m,1H), 2.9 (dd, J=14 and 9 Hz, 1H), 2.7 (dd, J14 and 4 Hz, 1H), 2.55 (dd,J=14 and 9 Hz, 1H), 2.35 (dd, J=14 and 4 Hz, 1H). MS (ES) m/e 368, 370.

d)5-Carbomethoxy-1,2-dihydro-2-(4-trifluoromethylphenyl)-9H-carbazol-4(3H)-one

A suspension of3-(3-carbomethoxy-2-bromoanilino)-5(4-trifluoromethylphenyl)-cyclohex-2-en-1-one(2.18 g, 4.66 mM), palladium acetate (0.10 g, 0.47 mM),tri-o-tolylphosphine (0.28 g, 0.93 mM), and triethylamine (0.8 ml, 5.78mM) in 12 mL acetonitrile was heated at reflux for 3 hours. The solventwas removed in vacuo. The residue was dissolved in methylene chloride,washed with 1 N HCl, then with saturated brine, dried over anhydroussodium sulfate, filtered, and concentrated to afford 2.21 g.Purification by HPLC on silica gel (elution with gradient methylenechloride/ethyl acetate) afforded 1.57 g (87%) of the5-carbomethoxy-1,2-dihydro-2-(4-trifluoromethylphenyl)-9H-carbazol-4(3H)-one.¹H NMR (CDCl₃) δ9.2 (bs, 1H), 7.6 (d, J=8 Hz, 2H), 7.45-7.35 (m, 5H),7.25 (d, J=8 Hz, 2H), 3.55 (m, 1H), 3.2-3.0 (m, 2H), 2.7 (m, 2H). MS(ES) m/e 356,388.

EXAMPLE 11 Preparation of{9-[(phenyl)methyl]-5-carbamoyl-2-(4-trifluoromethylphenyl)-carbazol-4-yl}oxyaceticacid

a)9-[(Phenyl)methyl]-5-carbomethoxy-2-(4-trifluoromethylphenyl)-1,2-dihydrocarbazol-4(3H)-one

A suspension of5-carbomethoxy-1,2-dihydro-2-(4-trifluoromethylphenyl)-9H-carbazol-4(3H)-one(1.57 g, 4.05 mM), benzyl bromide (0.49 ml, 4.13 mM), and potassiumcarbonate (1.12 g, 8.10 mM) in 20 mL DMF was stirred at room temperaturefor 22 hours. The mixture was diluted with EtOAc and 1N HCl. The layerswere separated and the aqueous extracted with EtOAc. The combined EtOAclayers were extracted with 1N HCl, water, then brine. After drying(NaSO₄), evaporation in vacuo afforded 1.87 g (96%) of the9-[(phenyl)methyl]-5-carbomethoxy-2-(4-trifluoromethylphenyl)-1,2-dihydrocarbazol-4(3H)-one.¹H NMR (CDCl₃) δ7.6 (d, J=8 Hz, 2H), 7.45-7.25 (m, 8H), 6.95 (m, 2H),5.35 (s, 2H), 4.05 (s, 3H), 3.65 (m, 1H), 3.2 (dd, J=16 and 5 Hz, 1H),3.0 (dd, J=16 and 10 Hz, 1H), 2.8 (m, 2H). MS (ES) m/e 478.

b)9-[(Phenyl)methyl]-2-(4-trifluoromethylphenyl)-4-hydroxy-5-carbomethoxycarbazole

A solution of the9-[(phenyl)methyl]-5-carbomethoxy-2-(4-trifluoromethylphenyl-1,2-dihydrocarbazol-4(3H)-one(1.87 g, 3.92 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (0.89 g,3.92 mM) in 39 mL of toluene was refluxed for 25 minutes. The mixturewas purified by column chromatography on silica gel (elution withtoluene) to afford 1.10 g (59%) of the9-[(phenyl)methyl]-2-(4-trifluoromethylphenyl)-4-hydroxy-5-carbomethoxycarbazole. ¹H NMR (CDCl₃) δ10.65 (s, 1H), 8.05 (d, J=8 Hz, 1H), 7.8 (m,3H), 7.65 (m, 3H), 7.6 (d, J=8 Hz, 1H), 7.45 (dd, J=8 and 8 Hz, 1H),7.3-7.1 (m, 2H), 5.6 (s, 2H), 4.1 (s, 3H). MS (ES) m/e 444. 476.

c) 9-[(Phenyl)methyl]-2-(4-trifluoromethylphenyl)-4-hydroxy-5-carbamoylcarbazole

A solution of the9-[(phenyl)methyl]-2-(4-trifluoromethylphenyl)-4-hydroxy-5-carbomethoxycarbazole (1.10 g, 2.31 mM) in 35 ml THF and 140 mL concentrated aqueousammonium hydroxide was sonicated for 6 hours at 30-40° C. Theprecipitated solid was filtered and washed with water. Trituration withEt₂O, then with 2:1 Et₂O/CH₂Cl₂ afforded 0.20 g (19%) of the9-[(phenyl)methyl]-2-(4-trifluoromethylphenyl)-4-hydroxy-5-carbamoylcarbazole. ¹H NMR (DMSO-d6) δ10.8 (s, 1H), 8.9 (bs, 1H), 8.45 (bs, 1H),8.0 (d, J=8 Hz, 2H), 7.8 (d, J=8 Hz, 2H), 7.6 (s, 1H), 7.5 (m, 2H),7.3-7.1 (m, 6H), 7.0 (s, 1H), 5.8 (s, 2H). MS (ES) m/e 444, 461.

d){9-[(Phenyl)methyl]-2-(4-trifluoromethylphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester

60% Sodium hydride in mineral oil (22 mg, 0.54 mM) was added to asolution of the9-[(phenyl)methyl]-2-(4-trifluoromethylphenyl)-4-hydroxy-5-carbamoylcarbazole (0.20 g, 0.43 mM) in 15 mL DMF and 3 ml THF. After 7 minutes,methyl bromoacetate (56 μl, 0.59 mM) was added and the resultant mixturestirred at room temperature for 1 hour. The mixture was diluted withethyl acetate and washed with H₂O. The aqueous layer was extracted withethyl acetate. The combined organic layers were extracted with saturatedbrine, dried over sodium sulfate, filtered, and concentrated. Theresidue was purified by column chromatography on silica gel (elutionwith ethyl acetate) to afford 0.19 g (84%) of the{9-[(phenyl)methyl]-2-(4-trifluoromethylphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester. ¹H NMR (DMSO-d6) δ8.0 (d, J=8 Hz, 2H), 7.85 (d, J=8Hz, 2H), 7.7 (s, 1H), 7.6 (d, J=8 Hz, 1H), 7.6 (bs, 1H), 7.4 (dd, J=8and 8 Hz, 1H), 7.3-7.1 (m, 6H), 7.1 (d, J=8 Hz, 1H), 7.0 (s, 1H), 5.8(s, 2H), 5.1 (s, 2H), 3.7 (s, 3H). MS (FD) m/e 516,533.

Elemental Analyses for C₃₀H₂₃F₃N₂O₄: Calculated: C, 67.66; H, 4.36; N,5.26. Found: C, 68.38; H, 4.29; N, 5.67.

e){9-[(Phenyl)methyl]-2-(4-trifluoromethylphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid

A solution of the{9-[(phenyl)methyl]-2-(4-trifluoromethylphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester (101 mg, 0.19 mM) and 0.95 mL (1.9 mM) of 2 N NaOH in9.5 mL of ethanol was stirred for 30 minutes at 25° C. The reaction wasacidified with 1N HCl to pH=2. After stirring 30 minutes, the resultantwhite precipitate was collected by filtration, washed with water, thendried in vacuo to afford 73 mg (75%){9-[(phenyl)methyl]-2-(4-trifluoromethylphenyl)-5-carbamoylcarbazol-4-yl}oxyaceticacid. ¹H NMR (DMSO-d6) δ11.0 (bs, 1H), 8.0 (d, J=8 Hz, 2H), 7.85 (d, J=8Hz, 2H), 7.8 (bs, 1H), 7.7 (s, 1H), 7.65 (d, J=8 Hz, 1H), 7.4 (m, 2H),7.3-7.1 (m, 6H), 7.0 (s, 1H), 5.8 (s, 2H), 5.0 (s, 2H). MS (ES) m/e502,519.

Elemental Analyses for C₂₉H₂₁F₃N₂O₄: Calculated: C, 67.17; H, 4.09; N,5.40. Found: C, 67.05; H, 4.11; N, 5.31.

EXAMPLE 12 Preparation of9-benzyl-5-(2-methanesulfonamido)ethyloxy-7-methoxy-1,2,3,4-tetrahydrocarbazole-4-carboxamide

A. Preparation of5-(2-amino)ethyloxy-9-benzyl-7-methoxy-1,2,3,4-tetrahydrocarbazole-4-carboxamide

To 1.93 ml (1.93 mmol) 1M lithium aluminum hydride/THF in 13 ml THF at0° C. was added H₂SO₄(53 μl, 0.97 mmol) dropwise over 5 min. The mixturewas allowed to stir at room temperature 1 hour, then a solution of9-benzyl-7-methoxy-5-cyanomethyloxy-1,2,3,4-tetrahydrocarbazole-4-carboxamide(0.50 g, 1.29 mmol) in 13 ml THF was added dropwise at a rate which keptthe temperature below 26° C. After an additional 45 minutes, thereaction was quenched with 0.5 ml 1:1 THF/H₂O, 0.75 ml 13% NaOH, andfinally 80 μl H₂O. The reaction was diluted with EtOAc and saturatedNaHCO₃, and the layers separated. The organic layer was extracted withbrine, dried over sodium sulfate, and evaporated in vacuo. The residuewas chromatographed on silica gel eluting with 9:1:0.1 CH₂Cl₂/MeOH/NH₄OHto give the subtitled product (0.28 g, 55%). MS (ES+) 394

B. Preparation of9-benzyl-5-(2-methanesulfonamido)ethyloxy-7-methoxy-1,2,3,4-tetrahydrocarbazole-4-carboxamide

To 0.20 g (0.51 mmol) of the product from Part A in 10 ml THF at 0° C.was added triethylamine (71 μl, 0.51 mmol) and methanesulfonylchloride(39 μl, 0.51 mmol). After 40 minutes at 0° C., the reaction was dilutedwith EtOAc and saturated NaHCO₃, and the layers separated. The organiclayer was extracted with brine, dried over sodium sulfate, andevaporated in vacuo. The residue was chromatographed on silica geleluting with 20:1 CH₂Cl₂/MeOH and crystallized from EtOAc/hexane to givethe titled product (0.13 g, 54%). MS (ES+) 472

Elemental Analyses for C₂₄H₂₉N₃O₅S: Calculated: C, 61.13; H, 6.20; N,8.91. Found: C, 61.04; H, 6.16; N, 9.21.

EXAMPLE 13 Preparation of9-benzyl-4-(2-methanesulfonamido)ethyloxy-2-methoxycarbazole-5-carboxamide

A. Preparation of4-(2-amino)ethyloxy-9-benzyl-2-methoxycarbazole-5-carboxamide

To 1.25 ml (1.25 mmol) 1M lithium aluminum hydride/THF in 8.3 ml THF at0° C. was added H₂SO₄(34.5 μl, 0.63 mmol) dropwise over 5 min. Themixture was allowed to stir at room temperature 1 hour, then asuspension of 9-benzyl-4-cyanomethyloxy-2-methoxycarbazole-5-carboxamide(0.32 g, 0.83 mmol) in 8.3 ml THF was added dropwise at a rate whichkept the temperature below 26° C. After an additional 45 minutes, thereaction was quenched with 0.32 ml 1:1 THF/H₂O, 0.48 ml 13% NaOH, andfinally 51 μl H₂O. The reaction was diluted with EtOAc and saturatedNaHCO₃, and the layers separated. The organic layer was extracted withbrine, dried over sodium sulfate, and evaporated in vacuo. The residuewas chromatographed on silica gel eluting with 9:1:0.1 CH₂Cl₂/MeOH/NH₄OHto give the subtitled product (148 mg, 46%). MS (ES+) 390

B. Preparation of9-benzyl-4-(2-methanesulfonamido)ethyloxy-2-methoxycarbazole-5-carboxamide

To 107 mg (0.27 mmol) of the product from Part A in 11 ml THF at 0° C.was added triethylamine (38 μl,0.27 mmol) and methanesulfonylchloride(21 μl, 0.27 mmol). After 40 minutes at 0° C., the reaction was dilutedwith EtOAc and saturated NaHCO₃, and the layers separated. The organiclayer was extracted with brine, dried over sodium sulfate, andevaporated in vacuo. The residue was chromatographed on silica geleluting with 10:1 CH₂Cl₂/acetone and crystallized from EtOAc/hexane togive the titled product (28.6 mg, 22%). MS (ES+) 468

Elemental Analyses for C₂₄H₂₅N₃O₅S: Calculated: C, 61.66; H, 5.39; N,8.99. Found: C, 61.52; H, 5.31; N, 8.81.

EXAMPLE 14 Preparation of9-benzyl-4-(2-trifluoromethanesulfonamido)ethyloxy-2-methoxycarbazole-5-carboxamide

To 31.2 mg (0.08 mmol) of the product from Example 13, Part A in 3.2 mlTHF at 0° C. was added triethylamine (11.1 μl, 0.08 mmol) andtrifluoromethanesulfonylchloride (8.5 μl, 0.08 mmol). After 40 min at 0°C., the reaction was diluted EtOAc and saturated NaHCO₃, and the layersseparated. The organic layer was extracted with brine, dried over sodiumsulfate, and evaporated in vacuo. The residue was chromatographed onsilica gel eluting with a CH₂Cl₂/EtOAc gradient and triturated withether to give the titled product (19.3 mg, 46%). MS (ES+) 522

Elemental Analyses for C₂₄H₂₂F₃N₃O₅S: Calculated: C, 55.27; H, 4.25; N,8.06. Found: C, 55.11; H, 4.40; N, 7.99.

EXAMPLE 15 Preparation of9-benzyl-5-methanesulfonamidoylmethyloxy-7-methoxy-1,2,3,4-tetrahydrocarbazole-4-carboxamide

To 51 mg (0.125 mmol) of(9-benzyl-4-carbamoyl-7-methoxy-1,2,3,4-tetrahydrocarbazol-5-yl)oxyaceticacid in 25 ml THF was added carbonyldiimidazole (20.2 mg, 0.125 mmol).The reaction was refluxed for 21 hours, then allowed to cool to roomtemperature. To this was added a mixture of methanesulfonamide (11.9 mg,0.125 mmol) and diazabicycloundecene (18.7 μl, 0.125 mmol) in 2.5 mlTHF. After 3.5 hours, the reaction was diluted with EtOAc and extractedwith 10% NaHSO₃, saturated NaHCO₃, 10% NaHSO₃, and brine, respectively.The organic layer was dried with sodium sulfate and evaporated in vacuo.The residue was chromatographed on silica gel eluting with a CH₂Cl₂/EtOHgradient to give the titled product (8 mg, 10%).

High Resolution MS for C₂₄H₂₇N₃O₆S: Calculated: 485.1621. Found:485.1625.

EXAMPLE 16 Preparation of9-benzyl-4-methanesulfonamidoylmethyloxy-carbazole-5-carboxamide

To 48 mg (0.13 mmol) of (9-benzyl-5-carbamoyl-carbazol-4-yl)oxyaceticacid in 26 ml THF was added carbonyldiimidazole (21 mg, 0.13 mmol). Thereaction was refluxed for 25 hours, then allowed to cool to roomtemperature. To this was added a mixture of methanesulfonamide (12 mg,0.13 mmol) and diazabicycloundecene (19 μl, 0.13 mmol) in 2.6 ml THF.After 3 hours, the reaction was diluted with EtOAc and extracted with10% NaHSO₃, then brine. The organic layer was dried with sodium sulfateand evaporated in vacuo. The residue was chromatographed on silica geleluting with a CH₂Cl₂/EtOH gradient to give impure product. Extractionfrom EtOAc into saturated NaHCO₃ and reacidification gave the titledproduct (3.9 mg, 6.7%).

High Resolution MS for C₂₃H₂₁N₃O₅S: Calculated: 452.1280. Found:452.1284.

EXAMPLE 17 [5-carbamoyl-2-pentyl-9-(phenylmethyl)carbazol-4-yl]oxyaceticacid

A. Preparation of a mixture of 5-pentylcyclohexa-1,3-dione and its enolisomer

Sodium hydroxide (1.98 g, 49.5 mmol) was added to a stirred suspensionof olivetol (7.20 g, 39.9 mmol) in THF (20 mL)/H₂O (20 mL) at ambienttemperature under nitrogen atmosphere. The solution was stirred until itbecame a clear solution. Stir bar was removed before 5% Rh/Al₂O₃ (500mg) was added to the solution. The mixture was then subject tohydrogenation condition under a 60 pounds per square inch hydrogenatmosphere in a Parr shaker for 17 hours. After filtration throughcelite, the filtrate was cooled to 0° C., then treated with 5 N HCl(10.9 mL). The mixture was evaporated in vacuo at 40° C. and the residuewas chromatographed on silica (gradient 40-100% ethyl acetate in hexane,then 0-15% methanol in ethyl acetate) to give sub-titled compound (4.80g, 66%) as a white solid mixture of keto/enol isomers in a 3:2 ratio. mp68.5-69.5° C.; IR (KBr) 3200-2400 (br), 1610, 1542 cm⁻¹; 1H NMR (CDCl₃)δ0.88 (br t, J=6.6 Hz, 3H, —CH₃), 3.38 (s, 2H, —CH₂— of keto isomer),4.13 (s, 1H, ═CH— of enol isomer), 8.90 (br s, 1H, —OH); ESIMS m/e 183(M⁺+1);

Elemental Analyses for C₁₁H₁₈O₂: Calculated: C, 72.49; H, 9.95. Found:C, 72.72; H, 9.95.

B. Preparation of a mixture of 5-(hydroxymethyl)clohexa-1,3-dione andits enol isomer

Following the experimental procedure as described in part A, abovesynthesis of subtitled compound was obtained in a 75% yield. IR (KBr)3547, 3453 (br), 1633, 1580 cm⁻¹; ¹H NMR (DMSO-d₆) δ1.90-2.30 (m, 5H),3.30 (br s, 2H, —CH₂O—), 4.61 (br s, 1H, —OH), 5.13 (s, 1H), 10.94 (s,1H, —OH); ESIMS m/e 143 (M⁺+1);

Elemental Analyses for C₇H₁₀O₃: Calculated: C, 59.14; H, 7.09. Found: C,59.44; H, 7.08.

C. Preparation of3-(2-bromo-3-carbomethoxyanilino)-5-pentylcyclohex-2-en-1-one

A stirred mixture of methyl-3-amino-2-bromobenzoate prepared asdescribed in Preparation 4 (5.12 g, 22.3 mmol) and the compound of PartA (4.06 g, 22.3 mmol) was heated in an oil bath at 150° C. for 1.4 hoursunder a positive nitrogen pressure to continuously remove the watervapor. At ambient temperature, the mixture was chromatographed on silica(gradient 30-100% ethyl acetate in hexane) to provide subtitled compound(6.06 g, 69%) as a white solid. mp 132.0-134.0° C.; IR (KBr) 3220 (br),1726, 1580 cm⁻¹; ¹H NMR (CDCl₃) δ0.90 (br t, J=6.6 Hz, 3H, —CH₃),1.25-1.45 (m, 8H), 2.05-2.27 (m, 2H), 2.35-2.57 (m, 3H), 3.94 (s, 3H,—OCH₃), 5.57 (s, 1H, ═CH—), 6.44 (br s, 1H, —NH), 7.35 (t, J=6.8 Hz,1H), 7.53 (d, J=6.8 Hz, 2H); ESIMS m/e 394 (M⁺+1, ⁷⁹Br), 396(M⁺+1,⁸¹Br).

D. Preparation of5-carbomethoxy-1,2-dihydro-2-pentyl-9H-carbazol-4(3H)-one

Triethylamine (2.09 mL, 15.0 mmol) was added to a stirred suspension ofthe compound of part C, above (3.94 g, 10.0 mmol), Pd(OAc)₂ (338 mg,1.50 mmol), and tri-o-tolylphosphine (914 mg, 3.00 mmol) in acetonitrile(40 mL) at ambient temperature under nitrogen atmosphere. The resultantmixture was then heated in an oil bath at 85° C. for 1 h. The mixturewas evaporated in vacuo at 35° C. and the residue was chromatographed onsilica (gradient 20-100% ethyl acetate in hexane) to give subtitledcompound (2.45 g, 78%) as a white solid. mp 116.0-117.5° C.; IR (KBr)3379 (br), 3180 (Br), 1725, 1627 cm⁻¹; ¹H NMR (CDCl₃) δ0.89 (br t, J=6.6Hz, 3H, —CH₃), 1.20-1.47 (m, 8H), 2.20-2.32 (m, 2H), 2.50-2.67 (m, 2H),2.92-3.05 (m, 1H), 4.02 (s, 3H, —OCH₃), 7.18-7.26 (m, 1H), 7.35-7.43 (m,2H), 9.20-9.42 (br s, 1H, —NH); ESIMS m/e 314 (M⁺+1);

Elemental Analyses for C₁₉H₂₃NO₃: Calculated: C, 72.82; H, 7.40; N,4.47. Found: C, 72.59; H, 7.43; N, 4.51.

E. Preparation of5-carbomethoxy-1,2-dihydro-2-pentyl-9-(phenylmethyl)carbazol-4(3H)-one

Benzylbromide (1.25 mL, 10.5 mmol) was added to a stirred suspension ofthe compound of example 17D (3.00 g, 9.57 mmol) and potassium carbonate(1.98 g, 14.4 mmol) in anhydrous DMF (30 mL) under nitrogen atmosphere.The resultant mixture was stirred for 5 hours. The mixture wasevaporated in vacuo at 40° C. and the residue was chromatographed onsilica (gradient 10-60% ethyl acetate in hexane) to give subtitledcompound (3.28 g, 85%) as a white solid. mp 119.0-120.5° C.; IR (KBr)1723, 1650 cm⁻¹; ¹H NMR (CDCl₃) δ0.87 (br t, J=6.6 Hz, 3H, —CH₃),1.23-1.52 (m, 8H), 2.25-2.40 (m, 2H), 2.47-2.57 (m, 1H), 2.69 (d, J=12.8Hz, 1H), 2.99 (dd, J=16.6, 3.6 Hz, 1H), 4.05 (s, 3H, —OCH₃), 5.36 (s,2H), 6.98-7.02 (m, 2H), 7.20-7.40 (m, 6H); ESIMS m/e 404 (M⁺+1).

F. Preparation of5-carbomethoxy-4-hydroxy-2-pentyl-9-(phenylmethyl)carbazole

(a) from DDQ oxidation: DDQ (563 mg, 2.48 mmol) was added to a stirredsuspension of the compound of part E, above (1.00 g, 2.48 mmol) inanhydrous toluene (30 mL) under nitrogen atmosphere. The resultantmixture was heated to reflux for 25 min. At ambient temperature, themixture was subject to chromatographic purification on silica (gradient0-30% ethyl acetate in toluene) to give subtitled compound (290 mg, 29%)as a yellow solid (310 mg, 31%). (b) from benzenesulfinate elimination:Sodium hydride (60% in oil, 192 mg, 4.80 mmol) was added to a stirredsolution of the compound of part E, above (807 mg, 2.00 mmol) and methylbenzenesulfinate (375 mg, 2.40 mmol) in anhydrous 1,4-dioxane (10 mL)under nitrogen atmosphere. The mixture was heated in an oil bath at 50°C. for 2 h 15 min. After dilution with additional 15 mL 1,4-dioxane, themixture was treated with acetic acid (0.343 mL, 6.00 mmol) and theresultant suspension was heated to reflux for 40 min. The mixture wasevaporated in vacuo and the residue was chromatographed on silica(gradient 0-5% ethyl acetate in toluene) to afford subtitled compund(690 mg, 86%) as a yellow solid. mp 130.0-132.0° C.; IR (KBr) 3200 (br),1686 cm⁻¹; ¹H NMR (CDCl₃) δ0.87 (br t, J=6.6 Hz, 3H, —CH₃), 1.25-1.38(m, 4H), 1.60-1.75 (m, 2H), 2.69 (t, J=7.7 Hz, 2H), 4.10 (s, 3H, —OCH₃),5.52 (s, 2H), 6.71 (s, 1H), 6.76 (s, 1H), 7.09-7.11 (m, 2H), 7.20-7.30(m, 3H), 7.37 (t, J=8.0 Hz, 1H), 7.55 (d, J=8.0 Hz, 1H), 7.97 (d, J=8.0Hz, 1H), 10.43 (s, 1H, —OH); ESIMS m/e 402 (M⁺+1);

Elemental Analyses for C₂₆H₂₇NO₃.0.2(C₇H₈): Calculated: C, 78.37; H,6.86; N, 3.34. Found: C, 78.48; H, 6.68; N, 3.53.

G. Preparation of5-carbamoyl-4-hydroxy-2-pentyl-9-(phenylmethyl)carbazole

Ammonia was bubbled through a stirred suspension of the compund of partF, above (590 mg, 1.47 mmol) in ammonia water (50 mL)/THF (10 mL) at−25° C. for 5 minutes in a pressure bottle. The bottle was screw-cappedbefore the mixture was allowed to stir at ambient temperature for 3days. After cooling to −25° C., the screw cap was removed and themixture was allowed to stir at ambient temperature for 10 minutes. Afterconcentration, the residue was subject to chromatographic purificationon silica (gradient 0-40% tetrahydrofuran in toluene) to recover thecompound of part F (160 mg, 27%) and obtain the desired subtitledproduct (397 mg, 70%) as a yellowish solid. IR (KBr) 3437, 3200 (br),1633, 1601 cm⁻¹; ¹H NMR (CDCl₃) δ0.86 (br t, J=6.6 Hz, 3H, —CH₃),1.22-1.38 (m, 4H), 1.60-1.75 (m, 2H), 2.69 (t, J=7.7 Hz, 2H), 5.52 (s,2H), 6.16 (s, 1H, —NH), 6.53 (s, 1H, —NH), 6.72 (s, 1H), 6.76 (s, 1H),7.07-7.11 (m, 2H), 7.23-7.30 (m, 3H), 7.35 (t, J=7.7 Hz, 1H), 7.43 (d,J=7.7 Hz, 1H), 7.48 (d, J=7.7 Hz, 1H), 9.80 (s, 1H, —OH); ESIMS m/e 387(M⁺+1);

Elemental Analyses for C₂₅H₂₆N₂O₂: Calculated: C, 77.69; H, 6.78; N,7.25. Found: C, 77.69; H, 6.63; N, 7.15.

H. Preparation of[5-carbamoyl-2-pentyl-9-(phenylmethyl)carbazol-4-yl]oxyacetic acid,methyl ester

Methyl bromoacetate (48.0 mg, 0.314 mmol) was added to a stirredsuspension of the compound of example 17G, above (110 mg, 0.285 mmol)and cesium carbonate (186 mg, 0.570 mmol) in anhydrous DMF (2 mL) atambient temperature under nitrogen atmosphere. The resultant mixture wasstirred for 1 hour. After concentration in vacuo at 40° C., the residuewas chromatographed on silica (gradient 10-60% tetrahydrofuran intoluene) to give subtitled product (115 mg, 88%) as a white solid. mp195.0-196.0° C.; IR (KBr) 3365 (br), 3157 (br), 1758, 1640 cm⁻¹; ¹H NMR(CDCl₃) δ0.87 (br t, J=6.6 Hz, 3H, —CH₃), 1.22-1.35 (m, 4H), 1.58-1.70(m, 2H), 2.69 (t, J=7.6 Hz, 2H), 3.84 (s, 3H, —OCH₃), 4.89 (s, 2H,—OCH₂—), 5.50 (s, 2H, —NCH₂—), 5.95 (br s, 1H, —NH), 6.08 (br s, 1H,—NH), 6.41 (s, 1H), 6.85 (s, 1H), 7.07-7.11 (m, 2H), 7.23-7.40 (m, 6H);ESIMS m/e 459 (M⁺+1);

Elemental Analyses for C₂₈H₃₀N₂O₄: Calculated: C, 73.34; H, 6.59; N,6.11. Found: C, 73.56; H, 6.43; N, 6.25.

I. Preparation of[5-carbamoyl-2-pentyl-9-(phenylmethyl)carbazol-4-yl]oxyacetic acid

Lithium hydroxide (4.17 N, 86.3 mL, 0.360 mmol) was added to a stirredsuspension of the compound of Example 17H, above (110 mg, 0.240 mmol) inTHF (2 mL)/CH₃OH (0.3 mL)/H₂O (0.3 mL). The resultant mixture wasstirred in an oil bath at 55° C. for 30 minutes to form a whitesuspension. Five milliliter of THF was added to the suspension before itwas treated with 5 N HCl (96.0 mL, 0.480 mmol) to become a clearsolution. After concentration, the white solid was resuspended in THF(0.5 mL)/H₂O (5 mL), sonicated, filtered, and dried to give thesubtitled compound (106 mg, 99%) as a white solid. IR (KBr) 3458 (br),3500-3100 (br), 1656, 1620 cm⁻¹; ¹H NMR (DMSO-d₆) δ0.80 (br t, J=6.6 Hz,3H, —CH₃), 1.18-1.30 (m, 4H), 1.50-1.62 (m, 2H), 2.61 (br t, J=7.3 Hz,2H), 4.55 (s, 2H, —OCH₂—), 5.60 (s, 2H, —NCH₂—), 6.40 (s, 1H), 6.95-7.32(m, 9H), 7.51 (d, J=8.0 Hz, 1H), 7.70 (br s, 1H, —NH); ESIMS m/e 445(M⁺+1).

EXAMPLE 18(5-carbamoyl-2-(1-methylethyl)-9-(phenylmethyl)carbazol-4-yl]oxyaceticacid

A. Preparation of3-(2-bromo-3-carbomethoxyanilino)-5-[(1-methyl)ethyl]cyclohex-2-en-1-one

Prepared in 70% yield by the method of Example 17 part C. mp129.0-130.0° C.; ¹H NMR (CDCl₃) δ0.98 (t, J=5.5 Hz, 6H), 1.66 (m, 1H),2.00 (m, 1H), 2.14 (t, J=14.8 Hz, 1H), 2.46 (m, 3H), 4.00 (s, 3H), 5.57(s, 1H), 6.40 (br s, 1H), 7.35 (t, J=7.9 Hz, 1H), 7.35 (d, J=7.8 Hz,2H); ESIMS m/e 366 (M⁺+1, ⁷⁹Br), 368 (M⁺+1, ⁸¹Br)

B Preparation of5-carbomethoxy-1,2-dihydro-2-(1-methylethyl)-9H-carbazol-4(3H)-one

Prepared in 65% yield by the procedure of Example 17D. mp 175.0-177.0°C.; ¹H NMR (CDCl₃) δ0.95 (t, J=6.7 Hz, 6H), 1.62 (m, 1H), 2.05 (m, 1H),2.27 (dd, J=16.1, 12.6 Hz, 1H), 2.60 (m, 2H), 2.89 (dd, J=16.4, 4.3 Hz,1H), 4.02 (s, 3H), 7.23 (m, 1H), 7.36 (m, 2H), 9.28 (br s, 1H); ESIMSm/e 286 (M⁺+1);

Elemental Analyses for C₁₇H₁₉NO₃: Calculated: C, 71.56; H, 6.71; N,4.91. Found: C, 71.43; H, 6.62; N, 4.74.

C. Preparation of5-carbomethoxy-1,2-dihydro-2-(1-methylethyl)-9-(phenylmethyl)carbazol-4(3H)-one

Prepared in 37% yield by the method of Example 17E. mp: 155.0-156.0° C.;¹H NMR (CDCl₃) δ1.28 (d, J=8.0 Hz, 6H), 3.00 (m, 1H), 4.10 (s, 3H), 5.23(s, 2H), 6.78 (d, J=9.5 Hz, 2H), 7.11 (m, 2H), 7.28 (m, 3H), 7.37 (t,J=7.9 Hz, 1H), 7.54 (d, J=7.9 Hz, 1H), 7.98 (d, J=7.9 Hz, 1H), 10.46 (s,1H); ESIMS m/e 374 (M⁺+1);

Elemental Analyses for C₂₄H₂₃NO₃: Calculated: C, 77.19; H, 6.21; N,3.75. Found: C, 76.96; H, 6.33; N, 3.77.

D. Preparation of5-carbomethoxy-4-hydroxy-2-(1-methylethyl)-9-(phenylmethyl)carbazole

DDQ (1.15 g, 5.07 mmol) was added to a stirred suspension of thecompound of Example 18C (1.90 g, 5.07 mmol) in anhydrous toluene (30 mL)under argon atmosphere. The resultant mixture was heated under refluxfor 25 min. After cooling to room temperature, the mixture was subjectedto chromatography on silica gel eluting with a gradient ofhexanes/toluene(1:1) to toluene/EtOAc (97:3). The desired product wasobtained a mixture with the corresponding isopropylidene compound. Themixture was dissolved in EtOAc (30 mL) under nitrogen atmosphere, and0.1 g of PtO₂ was added. The mixture was stirred at room temperatureunder hydrogen at balloon pressure for 25 min. Filtration throughcelite, followed by recrystallization from Et₂O/hexanes gave thesubtitled compound as a pale yellow crystalline solid (0.705 g; 37%yield). mp: 155.0-156.0° C.; ¹H NMR (CDCl₃) δ1.28 (d, J=8.0 Hz, 6H),3.00 (m, 1H), 4.10 (s, 3H), 5.23 (s, 2H), 6.78 (d, J=9.5 Hz, 2H), 7.11(m, 2H), 7.28 (m, 3H), 7.37 (t, J=7.9 Hz, 1H), 7.54 (d, J=8.0 Hz, 1H),7.98 (d, J=7.9 Hz, 1H), 10.46 (s, 1H); ESIMS m/e 374 (M⁺+1);

Elemental Analyses for C₂₄H₂₃NO₃: Calculated: C, 77.19; H, 6.21; N,3.75. Found: C, 76.96; H, 6.33; N, 3.77.

E. Preparation of5-carbamoyl-4-hydroxy-2-(1-methylethyl)-9-(phenylmethyl)carbazole

Prepared in 50% yield by the procedure of example 17G. mp 216.0-218.0°C.; ¹H NMR (CDCl₃) δ1.29 (d, J=6.9, 6H), 3.00 (m, 1H), 5.53(s, 2H), 6.16(br s, 1H), 6.52 (br s, 1H), 6.78 (d, J=8.6 Hz, 2H), 7.11 (m, 2H), 7.28(m, 3H), 7.32 (m, 1H), 7.4 (m, 2H), 9.8 (br s, 1H); ESIMS m/e 359.3(M⁺+1);

Elemental Analyses for C₂₃H₂₂N₂O₂: Calculated: C, 77.07, H, 6.19; N,7.82. Found: C, 77.10; H, 6.35; N, 7.74.

F. Preparation of[5-carbamoyl-2-(1-methylethyl)-9-(phenylmethyl)carbazol-4-yl]oxyaceticacid, methyl ester

Prepared by the procedure of example 17H in 54% yield. mp 189.0-191.0°C.; ¹H NMR (CDCl₃) δ1.27 (d, J=6.9 Hz, 6H), 2.98 (m, 1H), 3.84 (s, 3H),4.90 (s, 2H), 5.51(s, 2H), 5.8-6.2 (m, 2H), 6.47 (s, 1H), 6.90 (s, 1H),7.11 (m, 2H), 7.2-7.4 (m, 6H); ESIMS m/e 431 (M⁺+1);

Elemental Analyses for C₂₆H₂₆N₂O₄: Calculated: C, 72.54; H, 6.09; N,6.51. Found: C, 72.58; H, 6.24; N, 6.43.

G. Preparation of[5-carbamoyl-2-(1-methylethyl)-9-(phenylmethyl)carbazol-4-yl]oxyaceticacid

Prepared by the procedure of example Example 17I in 82% yield. ¹H NMR(CDCl₃) δ1.20 (d, J=6.7, 6H), 2.94 (m, 1H), 4.79 (s, 2H), 5.63 (s, 2H),6.49(s, 1H), 7.00-7.40 (m, 9H), 7.51 (m, 1H), 7.70 (br s, 1H), 12.94 (brs, 1H); ESIMS m/e 417 (M⁺+1);

Elemental Analyses for C₂₅H₂₄N₂O₄: Calculated: C, 72.10; H, 5.81; N,6.73. Found: C, 72.11; H, 5.62; N, 6.49.

EXAMPLE 19[5-carbamoyl-9-(phenylmethyl)-2-[(tri(-1-methylethyl)silyl)oxymethyl]carbazol-4-yl]oxyaceticacid

A. Preparation of3-(2-bromo-3-carbomethoxyanilino)-5-(hydroxymethyl)cyclohex-2-en-1-one

Following the experimental procedure as described in the synthesis ofExample 17 part C, subtitled compound was obtained as a white solid in a68% yield. IR (KBr) 3407 (br), 3364 (br), 3222 (br), 1738, 1600, 1566cm⁻¹; ¹H NMR (DMSO-d₆) δ1.94 (dd, J=16.5, 12.5 Hz, 1H), 2.02-2.15 (m,2H), 2.32 (dd, J=16.5, 9.9 Hz, 1H), 2.50-2.58 (m, 1H), 3.27-3.42 (m,2H), 3.83 (s, 3H, —OCH₃), 4.55 (s, 1H, ═CH—), 4.64 (t, J=5.1 Hz, 1H,—OH), 7.42-7.58 (m, 3H), 8.76 (s, 1H, —NH); ESIMS m/e 354 (M⁺+1, ⁷⁹Br),356(M⁺+1, ⁸¹Br);

Elemental Analyses for C₁₅H₁₆BrNO₄: Calculated: C, 50.87; H, 4.55; N,3.95. Found: C, 51.07; H, 4.60; N, 3.93.

B. Preparation of5-carbomethoxy-1,2-dihydro-2-(hydroxymethyl)-9H-carbazol-4(3H)-one

Following the experimental procedure as described in the synthesis ofExample 17D, subtitled compound was obtained as a white solid in a 66%yield. IR (KBr) 3350 (br), 1720, 1624 cm⁻¹; ¹H NMR (CDCl₃) δ1.92-2.20(m, 2H), 2.33 (dd, J=16.0, 3.0 Hz, 1H), 2.44 (dd, J=16.8, 9.9 Hz, 1H),2.67 (dd, J=16.8, 4.0 Hz, 1H), 3.33-3.48 (m, 2H), 4.05 (s, 3H, —OCH₃),7.20-7.26 (m, 1H), 7.33 (d, J=7.3 Hz, 1H), 7.43 (d, J=7.9 Hz, 1H), 10.25(s, 1H, —NH); ESIMS m/e 274 (M⁺+1);

Elemental Analyses for C₁₅H₁₅NO₄: Calculated: C, 65.93; H, 5.53; N,5.13. Found: C, 65.68; H, 5.78; N, 5.08.

C. Preparation of5-carbomethoxy-1,2-dihydro-2-(hydroxymethyl)-9-(phenylmethyl)carbazol-4(3H)-one

Following the experimental procedure as described in the synthesis ofExample 17E, the subtitled compound was obtained as a white solid in a88% yield. IR (KBr) 3366 (br), 1728, 1632 cm⁻¹; ¹H NMR (CDCl₃) δ1.98 (s,1H, —OH), 2.30-2.62 (m, 3H), 2.72 (dd, J=16.8, 9.7 Hz, 1H), 3.06 (dd,J=17.0, 3.6 Hz, 1H), 3.58-3.75 (m, 2H), 4.04 (s, 3H, —OCH₃), 5.25-5.40(m, 2H, —NCH₂—), 6.98-7.05 (m, 2H), 7.20-7.40 (m, 6H); ESIMS m/e 364(M⁺+1).

D. Preparation of[5-carbamoyl-9-(phenylmethyl)-2-[(tri(-1-methylethyl)silyl)oxymethyl]carbazol-4-yl]oxyaceticacid, methyl ester

etrabutylammonium fluoride (1 N in THF, 0.626 mL) was added to a stirredsolution of the compound of Example 23D (300 mg, 0.522 mmol) in THF (5mL). The mixture was stirred at ambient temperature for 1 hour. Afterconentration in vacuo at 35° C., the residue was subject tochromatographic purification (gradient 50-100% tetrahydrofuran intoluene, then 5% methanol in tetrahydrofuran) to give subtitled compound(122 mg, 56%) as a white solid. IR (KBr) 3380 (br), 3205 (br), 1733,1641, 1628 cm¹; ¹H NMR (DMSO-d₆) δ3.69 (s, 3H, —OCH₃), 4.55 (s, 2H,—OCH₂—), 4.86 (s, 2H, —OCH₂—), 5.22 (br s, 1H, —OH), 5.62 (s, 2H,—NCH₂—), 6.53 (s, 1H), 7.00-7.25 (m, 8H), 7.32 (br t, J=7.7 Hz, 1H),7.50 (br d, J=7.7 Hz, 1H), 7.53 (br d, J=7.7 Hz, 1H); ESIMS m/e 419(M⁺+1);

Elemental Analyses for C₂₄H₂₂N₂O₅: Calculated: C, 68.89; H, 5.30; N,6.69. Found: C, 68.80; H, 5.17; N, 6.72.

E. Preparation of[5-carbamoyl-9-(phenylmethyl)-2-[(tri(-1-methylethyl)silyl)oxymethyl]carbazol-4-yl]oxyaceticacid

Following the experimental procedure as described in the synthesis ofExample 17I, subtitiled compound was obtained as a white solid in a 99%yield. IR (KBr) 3427, 3331 (br), 1732, 1682, 1636 cm⁻¹; ¹H NMR (DMSO-d₆)δ4.55 (d, J=4.6 Hz, 2H, —OCH ₂OH), 4.78 (s, 2H, —OCH₂—), 5.25 (br t,J=4.6 Hz, 1H, —OH), 5.62(s, 2H, —NCH₂—), 6.57 (s, 1H), 7.00-7.25 (m,7H), 7.33 (br t, J=7.8 Hz, 1H), 7.39 (s, 1H, —NH), 7.55 (d, J=7.8 Hz,1H), 7.72 (s, 1H, —NH), 12.93 (s, 1H, —CO₂H); ESIMS m/e 405 (M⁺+1);

Elemental Analyses for C₂₃H₂₀N₂O₅.0.3H₂O: Calculated: C, 67.41; H, 5.07;N, 6.84. Found: C, 67.34; H, 5.13; N, 6.98.

EXAMPLE 20 Preparation of[5-carbamoyl-2-phenyl-9-(phenylmethyl)carbazol-4-yl]oxyacetic acid

A. Preparation of3-(2-bromo-3-carbomethoxyanilino)-5-phenylcyclohex-2-en-1-one

Prepared in 61% yield by the method of Example 17, part A. IR (KBr) 3180(br), 1734, 1592 cm⁻¹; ¹H NMR (CDCl₃) δ2.64-2.71 (m, 2H), 2.84 (dd,J=11.7, 16.2 Hz, 1H), 3.45-3.49 (m, 1H), 3.95 (s, 3H) 5.67 (s, 1H), 6.29(br s, 1H), 7.29-7.40 (m, 6H), 7.54-7.59 (m, 2H); ESIMS m/e 400 (M⁺+1,⁷⁹Br), 402 (M⁺+1, ⁸¹Br);

Elemental Analyses for C₂₀H₁₈BrNO₃: Calculated: C, 60.01; H, 4.53; N,3.50. Found: C, 60.23; H, 4.80; N, 3.47.

B. Preparation of5-carbomethoxy-1,2-dihydro-2-phenyl-9H-carbazol-4(3H)-one

Prepared by the method of Example 17D in 70% yield. IR (KBr) 3180, 1736,1628 cm⁻¹; ¹H NMR (CDCl₃) δ2.70 (d, J=4 Hz, 1H), 2.72 (s, 1H), 2.97-3.03(m, 2H), 4.03 (s, 3H), 7.18-7.39 (m, 8H), 9.52 (br s, 1H); ESIMS m/e 320(M⁺+1).

C. Preparation of5-carbomethoxy-1,2-dihydro-2-phenyl-9-(phenylmethyl)carbazol-4(3H)-one

Prepared in 85% yield by the method of Example 17E. IR (KBr) 1723, 1652cm⁻¹; ESIMS m/e 410 (M⁺+1).

D. Preparation of5-carbomethoxy-4-hydroxy-2-phenyl-9-(phenylmethyl)carbazole

Prepared in 50% yield by the method (a) of Example 17F. IR (KBr) 3326,1711 cm⁻¹; ¹H NMR (CDCl₃) δ4.10 (s, 3H), 5.52 (s, 2H), 7.08-7.10 (m,4H), 7.24-7.56 (m, 7H), 7.38 (d, J=8.1 Hz, 1H), 7.55 (d, J=8.0 Hz, 2H),7.97 (d, J=8.1 Hz, 1H) 10.43 (br s, 1H); ESIMS m/e 408 (M⁺+1);

Elemental Analyses for C₂₇H₂₁NO₃.0.1 C₇H₈: Calculated: C, 79.85; H,5.27; N, 3.36. Found: C, 80.19; H, 5.32; N, 3.49.

E. Preparation of5-carbamoyl-4-hydroxy-2-phenyl-9-(phenylmethyl)carbazole

Prepared in 40% yield by the method of Example 17G. ¹H NMR (CDCl₃) δ5.58(s, 2H), 6.25 (s, 1H), 6.59 (s, 1H), 7.11-7.16 (m, 4H), 7.26-7.48 (m,8H), 7.52 (d, J=8.1 Hz, 1H), 7.68 (d, J=7.2 Hz, 2H), 9.99 (br s, 1H);ESIMS m/e 393 (M⁺+1).

F. Preparation of[5-carbamoyl-2-phenyl-9-(phenylmethyl)carbazol-4-yl]oxyacetic acid,methyl ester

Prepared in 58% yield by the method of Example 17H. IR (KBr) 3359, 1755,1634 cm⁻¹; ¹H NMR (CDCl₃) δ3.85 (s, 3H), 4.96 (s, 2H), 5.58 (s, 2H),5.92 (br s, 2H), 7.11 (s, 1H), 7.13-7.24 (m, 2H), 7.26-7.30 (m, 3H),7.34-7.47 (m, 7H), 7.59 (d, J=7.3 Hz, 2H); ESIMS m/e 465 (M⁺+1);

Elemental Analyses for C₂₉H₂₄N₂O₄: Calculated: C, 74.98; H, 5.21; N,6.03. Found: C, 74.97; H, 5.22; N, 5.80.

G. Preparation of[5-carbamoyl-2-phenyl-9-(phenylmethyl)carbazol-4-yl]oxyacetic acid

Prepared in 86% yield by the method of Example 17I. IR (KBr) 3426, 3332,2625-2100 (br),1734, 1636 cm⁻¹; ¹H NMR (DMSO-d₆) δ4.94 (s, 2H), 5.57 (s,2H),6.96 (s, 1H), 7.06-7.31 (m, 6H), 7.33-7.47 (m, 5H), 7.55-7.60 (m,2H), 7.71-7.73 (m, 3H), 12.94 (br s, 1H); ESIMS m/e 451 (M⁺+1);

Elemental Analyses for C₂₈H₂₂N₂O₄: Calculated: C, 74.65; H, 4.92; N,6.22. Found: C, 74.87; H, 5.15; N, 6.11.

EXAMPLE 21[5-carbamoyl-2-(4-chlorophenyl)-9-(phenylmethyl)carbazol-4-yl]oxyaceticacid

A. Preparation of3-(2-bromo-3-carbomethoxyanilino)-5-(4-chlorophenyl)cyclohex-2-en-1-one

Prepared by the method of Example 17, part C in 80% yield. ¹H NMR(CDCl₃) δ2.66 (m, 3H), 2.86 (m, 1H), 3.44 (m, 1H), 3.95 (s, 3H), 5.75(s, 1H), 7.24 (m, 3H), 7.32 (m, 3H), 7.57 (t, J=7.1 Hz, 2H); ESIMS m/e434 (M⁺+1, ⁷⁹Br³⁵Cl), 436 (M⁺+1, ⁸¹Br³⁵Cl, ⁷⁹Br³⁷Cl), 438 (M⁺+1,⁸¹Br³⁷Cl);

Elemental Analyses for C₂₀H₁₇BrClNO₃: Calculated: C, 55.26; H, 3.94; N,3.22. Found: C, 55.55; H, 3.91; N, 3.21.

B. Preparation of5-carbomethoxy-1,2-dihydro-2-(4-chlorophenyl)-9H-carbazol-4(3H)-one

Prepared by the method of Example 17D in 64% yield. ¹H NMR (CDCl₃) δ2.72(m, 2H), 2.99 (dd, J=16.7, 16.5 Hz, 1H), 3.12 (dd, J=16.7, 4.7 Hz, 1H),3.45 (m, 1H), 4.04 (s, 3H), 7.17 (d, J=8.5 Hz, 2H), 7.23 (d, J=7.9 Hz,1H), 7.30 (d, J=8.4 Hz, 2H), 7.43 (t, J=7.9 Hz, 2H), 9.61 (br s, 1H);ESIMS m/e 354 (M⁺+1, ³⁵Cl), 356 (M⁺+1, ³⁷Cl);

Elemental Analyses for C₂₀H₁₆ClNO₃: Calculated: C, 67.90; H, 4.56; N,3.96. Found: C, 68.14; H, 4.51; N, 3.90.

C. Preparation of5-carbomethoxy-1,2-dihydro-2-(4-chlorophenyl)-9-(phenylmethyl)carbazol-4(3H)-one

Prepared by the procedure of Example 17E in 90% yield. ¹H NMR (CDCl₃)δ2.79 (d, J=3.7 Hz, 1H), 2.82 (s, 1H), 2.97 (dd, J=16.7, 11.5 Hz, 1H),3.19 (dd, J=16.7, 4.7 Hz, 1H), 3.59 (m, 1H), 4.06 (s, 3H), 5.35 (s, 2H),6.96 (t, J=3.6 Hz, 2H), 7.21 (m, 2H), 7.30 (m, 6H), 7.36 (t, J=7.5 Hz,2H); ESIMS m/e 444 (M⁺+1, ³⁵Cl), 446 (M⁺+1, ³⁷Cl);

Elemental Analyses for C₂₇H₂₂ClNO₃: Calculated: C, 73.05; H, 5.00; N,3.16. Found: C, 73.23; H, 5.15; N, 3.36.

D. Preparation of5-carbomethoxy-2-(4-chlorophenyl)-4-hydroxy-9-(phenylmethyl)carbazole

Prepared by method of example 17(b) in 66% yield. ¹H NMR (CDCl₃) δ4.12(s, 3H), 5.60 (s, 2H), 7.10 (t, J=4.5 Hz, 4H), 7.32 (m, 3H), 7.41 (m,3H), 7.60 (d, J=8.5 Hz, 3H), 8.04 (d, J=7.2 Hz, 1H).

E. Preparation of5-carbamoyl-2-(4-chlorophenyl)-4-hydroxy-9-(phenylmethyl)carbazole

Prepared by the procedure of example Example 17G in 43% yield. ¹H NMR(CDCl₃) δ5.77 (s, 2H), 6.89 (s, 1H), 7.07 (d, J=7.0 Hz, 2H), 7.23 (m,3H), 7.45 (m, 5H), 7.76 (d, J=8.4 Hz, 3H), 8.40 (s, 1H), 8.85 (s, 1H);ESIMS m/e 427 (M⁺+1, ³⁵Cl), 429 (M⁺+1, ³⁷Cl);

Elemental Analyses for C₂₆H₁₉ClN₂O₂: calculated: C, 73.15; H, 4.49; N,6.56. Found: C, 72.92; H, 4.57; N, 6.46.

F. Preparation of[5-carbamoyl-2-(4-chlorophenyl)-9-(phenylmethyl)carbazol-4-yl]oxyaceticacid, methyl ester

Prepared by the procedure of example Example 17H in 79% yield. ¹H NMR(CDCl₃) δ3.84 (s, 3H), 4.97 (s, 2H), 5.57 (s, 2H), 6.08 (br s, 1H), 6.14(br s, 1H), 6.74 (s, 1H), 7.12 (m, 2H), 7.18 (s, 1H), 7.22 (m, 2H), 7.41(m, 6H), 7.51 (d, J=8.5 Hz, 2H); ESIMS m/e 499 (M⁺+1, ³⁵Cl), 501 (M⁺+1,³⁷Cl).

G. Preparation of[5-carbamoyl-2-(4-chlorophenyl)-9-(phenylmethyl)carbazol-4-yl]oxyaceticacid

Prepared by the procedure of example Example 17I in 100% yield. ¹H NMR(CDCl₃) δ4.95 (s, 2H), 5.75 (s, 2H), 6.88 (s, 1H), 7.20 (m, 4H), 7.52(m, 6H), 7.76 (m, 3H), 12.92 (s, 1H); ESIMS m/e 485 (M⁺+1, ³⁵Cl), 487(M⁺+1, ³⁷Cl).

EXAMPLE 22[5-carbamoyl-2-(2-furyl)-9-(phenylmethyl)carbazol-4-yl]oxyacetic acid

A. Preparation of3-(2-bromo-3-carbomethoxyanilino)-5-(2-furyl)cyclohex-2-en-1-one

Prepared in 55% yield by the method of Example 17, part C. IR (KBr)3201, 1735, 1593, 1575 cm⁻¹; ¹H NMR (CDCl₃) δ2.56-2.94 (m, 4H),3.53-3.60 (m, 1H), 3.94 (s, 1H), 5.60 (s, 1H), 6.11 (d, J=2.8 Hz, 1H),6.22 (br s, 1H), 6.32-6.34 (m, 1H), 7.34-7.39 (m, 1H), 7.37 (br s, 1H),7.55 (d, J=7.9 Hz, 2H); m/e 390 (M⁺+1, ⁷⁹Br), 392 (M⁺+1, ⁸¹Br);

Elemental Analyses for C₁₈H₁₆BrNO₄: Calculated: C, 55.40; H, 4.13; N,3.59. Found: C, 55.62; H, 4.27; N, 3.71.

B. Preparation of5-carbomethoxy-1,2-dihydro-2-(2-furyl)-9H-carbazol-4(3H)-one

Prepared by the method of Example 17D in 47% yield. IR (KBr) 1736, 1633cm⁻¹; ¹H NMR (THF-d₈): δ2.59-2.77 (m, 2H) 3.14 (dd, J=16.5, 10.5 Hz,1H), 3.30 (dd, J=16.5, 10.3 Hz, 1H), 3.56-3.69 (m, 1H), 3.81 (s, 3H),6.13-6.14 (m, 1H), 6.27-6.29 (d, J=2.5 Hz, 1H), 7.11-7.21 (m, 2H),7.37-7.39 (m, 1H), 7.39 (s, 1H), 11.03 (br s, 1H); ESIMS m/e 310 (M⁺+1);

Elemental Analyses for C₁₈H₁₅NO₄.0.1C₇H₈: Calculated: C, 70.51; H, 4.50;N, 4.40. Found: C, 70.75; H, 4.85; N, 4.61.

C. Preparation of5-carbomethoxy-1,2-dihydro-2-(2-furyl)-9-(phenylmethyl)carbazol-4(3H)-one

Prepared in 91% yield by the method of Example 17E. IR (KBr) 3500 (br),1722, 1650 cm⁻¹; ¹H NMR (CDCl₃) δ2.79 (dd, J=16.6, 10.8 Hz, 1H), 2.94(dd, J=16.6, 4.2 Hz, 1H), 3.06 (dd, J=16.8, 9.8 Hz, 1H), 3.31 (dd,J=18.8, 4.7 Hz, 1H), 3.68-3.74 (m, 1H), 4.06 (s, 3H), 5.37 (s, 2H), 6.08(d, J=2.7 Hz, 1H), 6.28 (m, 1H), 6.96 (m, 2H), 7.22-7.40 (m, 7H); ESIMSm/e 400 (M⁺+1);

Elemental Analysis for C₂₅H₂₁NO₄: Calculated: C, 75.17; H, 5.30; N,3.51. Found: C, 75.46; H, 5.32; N, 3.67.

D. Preparation of5-carbomethoxy-2-(2-furyl)-4-hydroxy-9-(phenylmethyl)carbazole

Prepared in 72% yield by the method (b) of Example 17F. IR (KBr) 3500(br), 1674 cm⁻¹; ¹H NMR (CDCl₃) δ4.11 (s, 3H), 5.58 (s, 2H), 6.48-6.50(m, 1H), 6.75 (d, J=3.2 Hz, 1H), 7.09-7.12 (m, 2H), 7.16 (s, 1H),7.26-7.30 (m, 4H), 7.36-7.44 (t, J=8.0 Hz, 1H), 7.48 (s, 1H), 7.56 (d,J=8.1 Hz, 1H), 8.01 (d, J=7.5 Hz, 1H), 10.50 (br s, 1H); ESIMS m/e 398(M⁺+1).

E. Preparation of5-carbamoyl-2-(2-furyl)-4-hydroxy-9-(phenylmethyl)carbazole

Prepared in 60% yield by the method of Example 17G. IR (KBr) 3425 (br),3325 (br), 1642, 1628 cm⁻¹; ¹H NMR (DMSO-d₆) δ5.72 (s, 2H), 6.56-6.57(m, 1H), 6.95 (s, 1H), 6.98 (d, J=3.0 Hz, 1H), 7.07 (d, J=7.2 Hz, 2H),7.17-7.26 (m, 3H), 7.42-7.43 (m, 3H), 7.71-7.76 (m, 2H), 8.38 (s, 1H),8.83 (s, 1H), 10.70 (s, 1H); ESIMS m/e 381 (M⁻−1);

Elemental Analyses for C₂₄H₁₈N₂O₃: Calculated: C, 75.38; H, 4.74; N,7.33. Found: C, 75.35; H, 4.95; N, 7.29.

F. Preparation of[5-carbamoyl-2-(2-furyl)-9-(phenylmethyl)carbazol-4-yl]oxyacetic acid,methyl ester

Prepared in 80% yield by the method of Example 17H. IR (KBr) 3358, 1756,1643 cm⁻¹; ¹H NMR (DMSO-d₆) δ3.70 (s, 3H), 4.98 (s, 2H), 5.70 (s, 2H),6.58 (d, J=1.5 Hz, 1H), 6.93 (s, 1H), 7.01-7.30 (m, 8H), 7.35 (t, J=7.7Hz, 1H), 7.51-7.57 (m, 3H), 7.72 (s, 1H); ESIMS m/e 455 (M⁺+1);

Elemental Analyses for C₂₇H₂₂N₂O₅: Calculated: C, 71.36; H, 4.88; N,6.16. Found: C, 71.46; H, 4.91; N, 6.24.

G. Preparation of[5-carbamoyl-2-(2-furyl)-9-(phenylmethyl)carbazol-4-yl]oxyacetic acid

Prepared in 88% yield by the method of Example 17I. ¹H NMR (DMSO-d₆)δ4.89 (s, 2H) 5.71 (s, 2H), 6.58 (s, 1H), 6.94 (s, 1H), 7.00-7.38 (m,9H), 7.59 (d, J=9.2 Hz, 1H), 7.58 (s, 1H), 7.72 (br s, 2H), 12.98 (br s,1H); ESIMS m/e 441 (M⁺+1);

Elemental Analyses for C₂₆H₂₀N₂O₅: Calculated: C, 70.90; H, 4.58; N,6.36. Found: C, 71.20; H, 4.67; N, 6.28.

EXAMPLE 23[5-carbamoyl-9-(phenylmethyl)-2-[(tri(-1-methylethyl)silyl)oxymethyl]carbazol-4-yl]oxyaceticacid, lithium salt

A. Preparation of5-carbomethoxy-1,2-dihydro-9-(phenylmethyl)-2-[(tri(-1-methylethyl)silyl)oxymethyl]carbazol-4(3H)-one

Triisopropylsilyl trifluoromethanesulfonate (2.46 mL, 9.15 mmol) wasadded to a stirred suspension of the compound of Example 19C (2.89 g,7.95 mmol) and anhydrous pyridine (0.964 mL, 11.9 mmol) in anhydrousmethylene chloride (29 mL) at 0° C. under a nitrogen atmosphere. Themixture was stirred at 0° C. for 1 hour. Methanol (0.5 mL) was added tothe mixture and stirring was continued for 1 minute. After dilution withtoluene (10 mL), the mixture was concentrated and the residue wassubject to chromatographic purification on silica (gradient 10-50% ethylacetate in hexane) to give subtitled compound (4.06 g, 98%) as a whitesolid. IR (KBr) 1725, 1645 cm⁻¹; ¹H NMR (CDCl₃) δ0.90-1.15 (m, 21H,—CH(CH₃)₂), 2.50-2.63 (m, 3H), 2.74-2.86 (m, 1H), 3.02 (br d, J=7.7 Hz,1H), 3.67-3.81 (m, 2H, —CH₂O—), 4.05 (s, 3H, —OCH₃), 5.37 (s, 2H,—NCH₂—), 7.00-7.04 (m, 2H), 7.22-7.44 (m, 6H); ESIMS m/e 520 (M⁺+1);

Elemental Analyses for C₃₁H₄₁NO₄Si: Calculated: C, 71.64; H, 7.95; N,2.69. Found: C, 71.75; H, 7.91; N, 2.82.

B. Preparation of5-carbomethoxy-4-hydroxy-9-(phenylmethyl)-2-[(tri(-1-methylethyl)silyl)oxymethyl]carbazole

Following the experimental procedure (b) as described in the synthesisof Example 17F, subtitled compound was obtained as a yellowish solid ina 93% yield. IR (KBr) 3165 (br), 1671, 1629 cm⁻¹; ¹H NMR (CDCl₃)δ1.00-1.22 (m, 21H, —CH(CH₃)₂), 4.10 (s, 3H, —CH₃), 4.97 (s, 2H,—OCH₂—), 5.51 (s, 2H, —NCH₂—), 6.79 (s, 1H), 7.05-7.14 (m, 3H),7.20-7.30 (m, 3H), 7.39 (t, J=8.0 Hz, 1H), 7.59 (d, J=8.0 Hz, 1H), 7.98(d, J=8.0 Hz, 1H), 10.50 (s, 1H, —OH); ESIMS m/e 518 (M⁺+1);

Elemental Analyses for C₃₁H₃₉NO₄Si: Calculated: C, 71.92; H, 7.59; N,2.71. Found: C, 72.19; H, 7.21; N, 2.76.

C. Preparation of5-carbamoyl-4-hydroxy-9-(phenylmethyl)-2-[(tri(-1-methylethyl)silyl)oxymethyl]carbazole

Following the experimental procedure as described in the synthesis ofExample 17F(b), subtitled compound was obtained as a yellowish solid ina 80% yield. IR (KBr) 3348 (br), 3200, 1660, 1628 cm⁻¹; ¹H NMR (CDCl₃)δ1.00-1.20 (m, 21H, —CH(CH₃)₂), 4.94 (s, 2H, —OCH₂—), 5.52 (s, 2H,—NCH₂—), 6.22 (s, 1H, —NH), 6.56 (s, 1H, —NH), 6.75 (s, 1H), 7.05-7.10(m, 3H), 7.20-7.28 (m, 3H), 7.36 (t, J=7.6 Hz, 1H), 7.43 (d, J=7.6 Hz,1H), 7.53 (d, J=7.6 Hz, 1H), 9.75 (br s, 1H, —OH); ESIMS m/e 503 (M⁺+1).

D. Preparation of[5-carbamoyl-9-(phenylmethyl)-2-[(tri(-1-methylethyl)silyl)oxymethyl]carbazol-4-yl]oxyaceticacid, methyl ester

Following the experimental procedure as described in the synthesis ofExample 17H, subtitled produce was obtained as a white solid in a 94%yield. IR (KBr) 3484, 3180 (br), 1764, 1675 cm⁻¹; ¹H NMR (CDCl₃)δ1.00-1.20 (m, 21H, —CH(CH₃)₂), 3.82 (s, 3H, —OCH₃), 4.89 (s, 2H,—OCH₂—), 4.93 (s, 2H, —OCH₂—), 5.50 (s, 2H, —NCH₂—), 6.00 (br s, 2H,—NH₂), 6.60 (s, 1H), 7.05-7.12 (m, 3H), 7.22-7.28 (m, 3H), 7.32-7.38 (m,1H), 7.39-7.41 (m, 2H); ESIMS m/e 575 (M⁺+1);

Elemental Analyses for C₃₃H₄₂N₂O₅Si: Calculated: C, 68.96; H, 7.37; N,4.87. Found: C, 69.14; H, 7.20; N, 4.95.

E. Preparation of[5-carbamoyl-9-(phenylmethyl)-2-[(tri(-1-methylethyl)silyl)oxymethyl]carbazol-4-yl]oxyaceticacid, lithium salt

Lithium hydroxide (4.17 N, 42.5 mL, 0.177 mmol) was added to a stirredsuspension of part D above (50.9 mg, 0.0886 mmol) in THF (1 mL)/CH₃OH(0.3 mL)/H₂O (0.3 mL). The resultant mixture was stirred in an oil bathat 55° C. for 1 hour to form a white suspension. At ambient temperature,the white suspension was diluted with water (5 mL) and THF wasevaporated in vacuo. After filtration and washing with water, the whitesolid was dried under vacuum to give 11 (40.0 mg, 80%) of the titleproduct. IR (KBr) 3470, 3315, 1652, 1621 cm⁻¹; ¹H NMR (DMSO-d₆)δ0.90-1.15 (m, 21H, —CH(CH₃)₂), 4.29 (s, 2H, —OCH₂—), 4.84 (s, 2H,—OCH₂—), 5.57 (s, 2H, —NCH₂—), 6.49 (s, 1H), 7.00-7.25 (m, 7H), 7.31 (brt, J=7.9 Hz, 1H), 7.43 (br s, 1H, —NH), 7.59 (br d, J=7.9 Hz, 1H), 7.72(br s, 1H, —NH); ESIMS m/e 567 (M⁺+1).

Preparation 3 Preparation of5-Carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one from2-chloro-3-nitrobenzoic acid

a) Methyl 2-chloro-3-nitrobenzoate

A solution of 2-chloro-3-nitrobenzoic acid (20.16 g, 100.0 mM),iodomethane (15.6 g, 110 mM), and potassium carbonate (15.0 g, 108.5 mM)in 100 mL DMF was stirred at room temperature for 48 hours. The mixturewas poured into 1.5 liters of H₂O. The resultant precipitate wascollected by 20.0 g (93%) of methyl 2-chloro-3-nitrobenzoate as a whitesolid. ¹H NMR (CDCl₃) δ8.42 (dd, 1H, J=1 and 8 Hz), 8.18 (dd, 1H, J=1and 8 Hz), 7.43 (t, 1H, J=8 Hz), and 3.9 (s, 3H). IR (KBr, cm⁻¹) 1743,1719, 1595, 1540, 1532, 1433, 1357, 1300, and 730. MS (FD) m/e 215, 216.

Elemental Analyses for C₈H₆NO₄Cl: Calculated: C, 44.57; H, 3.81; N,6.50. Found: C, 44.19; H, 3.45; N, 6.19.

b) Methyl 2-chloro-3-aminobenzoate

Hydrogen gas was passed through a solution of methyl2-chloro-3-nitrobenzoate (10.0 g, 46.4 mM) and 1.0 g of 3% sulfidedplatinum on carbon in 150 mL ethyl acetate for 48 hours at roomtemperature. The catalyst was removed by filtration through celite.Concentration of the filtrate afforded 8.6 g (100%) of methyl2-chloro-3-aminobenzoate as a yellow oil. ¹H NMR (CDCl₃) δ7.25 (dd, 1H,J=1 and 8 Hz), 7.2 (t, 1H, J=8 Hz), 6.95 (dd, 1H, J=1 and 8 Hz), and 3.9(s, 3H). IR (CHCl₃, cm⁻¹) 3450, 3380, 2980, 2900, 1729, 1615, 1456,1434, 1322, 1290, and 1268. MS (ES) m/e 186, 188.

Elemental Analyses for C₈H₈NO₂Cl: Calculated: C, 51.77; H, 4.34; N,7.55. Found: C, 51.52; H, 4.17; N, 7.54.

b) Methyl 2-chloro-3-aminobenzoate

A solution of stannous chloride (27.0 g, 137.0 mM) in 55 mL ofconcentrated hydrochloric acid was slowly added to a solution of methyl2-chloro-3-nitrobenzoate (6.0 g, 27.9 mM) in 75 mL ethanol at 15-20° C.over 1 hour. The mixture was then heated at 50-60° C. for 15 minutes.The mixture was cooled to room temperature and made alkaline by slowaddition of solid sodium hydroxide maintaining a temperature of 30-35°C. The resultant mixture was extracted three times with chloroform. Theextracts were washed with brine, dried over sodium sulfate, filtered andconcentrated to afford 2.6 g (50%) of methyl 2-chloro-3-aminobenzoate asa yellow oil, identical in all respects to the material derived viacatalytic hydrogenation described above.

b) Methyl 2-chloro-3-aminobenzoate

A solution of sodium dithionite (14.0 g, 20.0 mM) and sodium carbonate(6.7 g) in 200 mL of water was slowly added to a solution of methyl2-chloro-3-nitrobenzoate (6.0 g, 27.9 mM) in 40 mL methanol and 40 mL oftetrahydrofuran at 25° C. over 30 minutes. The mixture was stirred atroom temperature for an additional 30 minutes, then extracted with ethylacetate. The extracts were washed with brine, dried over sodium sulfate,filtered and concentrated to afford 1.2 g (33%) of methyl2-chloro-3-aminobenzoate as a yellow oil, identical in all respects tothe material derived via catalytic hydrogenation described above.

c) 3-(3-Carbomethoxy-2-chloroanilino)cyclohex-2-en-1-one

A mixture of methyl 2-chloro-3-aminobenzoate (11.11 g, 59.86 mM) and1,3-cyclohexanedione (9.05 g, 80.8 mM) was heated at 120° C. under astream of nitrogen for 4 hours. The resultant solid was triturated withhot ethyl acetate, then dried in vacuo to afford 14.05 g (84%) of3-(3-carbomethoxy-2-chloroanilino)cyclohex-2-en-1-one as a yellow orangesolid. ¹H NMR (CDCl₃) δ7.6 (dt, 1H, J=1 and 8 Hz), 7.3 (t, 1H, J=8 Hz),6.6 (br s, 1H), 5.62 (s, 1H), 3.95 (s, 3H), 2.6 (t, 2H, J=6 Hz), 2.4 (t,2H, J=6 Hz), and 2.1 (m, 2H). IR (CHCl₃, cm⁻¹) 3050, 2950, 1729, 1536,1351, 1299, 1290, 1267, and 1135. MS (ES) m/e 278, 280, 282.

Elemental Analyses for C₁₄H₁₄NO₃Cl: Calculated: C, 60.11; H, 5.04; N,5.01. Found: C, 57.51; H, 4.99; N, 4.68.

d) 5-Carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one

A suspension of 3-(3-carbomethoxy-2-chloroanilino)cyclohex-2-en-1-one(10.22 g, 36.67 mM), palladium acetate (0.82 g, 3.66 mM),tricyclohexylphosphine (4.10 g, 14.62 mM), and triethylamine (30.0 mL,21.78 g, 215.2 mM) in 100 mL acetonitrile was heated at 130° C. in asealed vessel for 14 days. The mixture was diluted with ethyl acetate,washed twice with 1 N HCl, twice with H₂O, once with saturated brine,dried over anhydrous magnesium sulfate, filtered, and concentrated toafford 9.9 g of a light brown gum. Purification by HPLC on silica gel(elution with gradient methylene chloride/ethyl acetate) afforded 4.68 g(52%) of the 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one as ayellow solid. ¹H NMR (CDCl₃) δ9.15 (br s, 1H), 7.4 (dd, 1H, J=1 and 8Hz), 7.35 (dd, 1H, J=1 and 8 Hz), 7.25 (t, 1H, J=8 Hz), 4.05 (s, 3H),2.95 (t, 2H, J=6 Hz), 2.55 (t, 2H, J=6 Hz), and 2.2 (m, 2H). IR (CHCl₃,cm⁻¹) 3400, 3200 (br), 3000, 2950, 1721, 1646, 1466, 1439, 1427, 1299,1284, 1165, and 1135. MS (ES) m/e 242, 244.

Elemental Analyses for C₁₄H₁₃NO₃: Calculated: C, 69.12; H, 5.39; N,5.76. Found: C, 68.82; H, 5.67; N, 5.60.

Preparation 4 Preparation of5-Carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one from2-bromo-3-nitrobenzoic acid

a) Methyl 2-bromo-3-nitrobenzoate

A solution of 2-bromo-3-nitrobenzoic acid (28.4 g, 115.0 mM),iodomethane (18.0 g, 127 mM), and potassium carbonate (19.0 g, 137.4 mM)in 100 mL DMF was stirred at room temperature for 72 hours. The mixturewas poured into 1.5 liters of H₂O. The resultant precipitate wascollected by filtration and dried in vacuo to afford 28.79 g (96%) ofmethyl 2-bromo-3-nitrobenzoate as a white solid. ¹H NMR (DMSO-d6) δ8.3(dd, 1H, J=1 and 8 Hz), 7.9 (dd, 1H, J=1 and 8 Hz), 7.7 (t, 1H, J=8 Hz),and 3.9 (s, 3H). IR (KBr, cm⁻¹) 2950, 1738, 1541, 1435, 1364, 1298, and1142. MS (FD) m/e 259, 261.

Elemental Analyses for C₈H₆NO₄Br: Calculated: C, 36.95; H, 2.33; N,5.39. Found: C, 37.14; H, 2.37; N, 5.45.

b) Methyl 2-bromo-3-aminobenzoate

Hydrogen gas was passed through a solution of methyl2-bromo-3-nitrobenzoate (0.20 g, 0.77 mM) and 0.1 g of 3% sulfidedplatinum on carbon in 25 mL ethyl acetate for 24 hours at roomtemperature. The catalyst was removed by filtration through celite.Concentration of the filtrate afforded 0.175 g (99%) of methyl2-bromo-3-aminobenzoate as a yellow oil. ¹H NMR (CDCl₃) δ7.15 (t, 1H,J=8 Hz), 7.1 (dd, 1H, J=1 and 8 Hz), 6.8 (dd, 1H, J=1 and 8 Hz), and3.95 (s, 3H). IR (CHCl₃, cm⁻¹) 3550, 3380, 2980, 2900, 1729, 1613, 1465,1451, 1434, 1324, 1266, and 1025. MS (FD) m/e 230, 232.

Elemental Analyses for C₈H₈NO₂Br: Calculated: C, 41.77; H, 3.51; N,6.09. Found: C, 42.01; H, 3.29; N, 6.00.

b) Methyl 2-bromo-3-aminobenzoate

A solution of stannous chloride (15.0 g, 76.1 mM) in 30 mL ofconcentrated hydrochloric acid was slowly added to a solution of methyl2-bromo-3-nitrobenzoate (4.0 g, 15.4 mM) in 90 mL ethanol at 15-30° C.over 1 hour. The mixture was then heated at 50-60° C. for 15 minutes.The mixture was cooled to room temperature and made alkaline by slowaddition of solid sodium hydroxide maintaining a temperature of 30-35°C. The resultant mixture was extracted three times with chloroform. Theextracts were washed with brine, dried over sodium sulfate, filtered andconcentrated to afford 3.51 g (99%) of methyl 2-bromo-3-aminobenzoate asa yellow oil, identical in all respects to the material derived viacatalytic hydrogenation described above.

c) 3-(3-Carbomethoxy-2-bromoanilino)cyclohex-2-en-1-one

A mixture of methyl 2-bromo-3-aminobenzoate (13.2 g, 60.0 mM) and1,3-cyclohexanedione (8.4 g, 75 mM) was heated at 125° C. under a streamof nitrogen for 4 h. The resultant solid was purified by HPLC on silicagel (elution with methylene chloride/ethyl acetate) to afford 17.2 g(88%) of 3-(3-carbomethoxy-2-bromoanilino)cyclohex-2-en-1-one as a tanfoam. ¹H NMR (DMSO-d6) δ8.75 (s, 1H), 7.6-7.4 (m, 3H), 4.65 (s, 1H),3.85 (s, 3H), 2.6 (t, 2H, J=6 Hz), 2.15 (t, 2H, J=6 Hz), and 1.9 (m,2H). IR (CHCl₃, cm⁻¹) 3400, 3004, 2954, 1732, 1607, 1588, 1573, 1513,1464, 1436, 1412, 1308, 1249, 1177, and 1144. MS (ES) m/e 322, 324, 326.

Elemental Analyses for C₁₄H₁₄NO₃Br: Calculated: C, 51.85; H, 4.32; N,4.32. Found: C, 53.60; H, 4.73; N, 4.09.

d) 5-Carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one

A suspension of 3-(3-carbomethoxy-2-bromoanilino)cyclohex-2-en-1-one(15.8 g, 48.8 mM), palladium acetate (1.12 g, 5.0 mnM),tri-o-tolylphosphine (3.1 g, 10.0 mM), and triethylamine (6.3 g, 62.0mM) in 120 mL acetonitrile was heated at reflux for 8 hours. The solventwas removed in vacuo. The residue was dissolved in methylene chloride,washed twice with 1 N HCl, twice with H₂O, once with saturated brine,dried over anhydrous magnesium-sulfate, filtered, and concentrated toafford 17 g of a light brown foam. Purification by HPLC on silica gel(elution with gradient methylene chloride/ethyl acetate) afforded 9.2 g(78%) of the 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one as ayellow solid, identical with the material derived from3-(3-carbomethoxy-2-chloroanilino)cyclohex-2-en-1-one, described above.¹H NMR (DMSO-d6) δ7.5 (d, 1H, J=8 Hz), 7.25-7.1 (m, 2H), 5.7 (s, 1H),3.8 (s, 3H), 2.95 (t, 2H, J=6 Hz), 2.4 (t, 2H, J=6 Hz), and 2.1 (m ,2H). MS (ES) m/e 242, 244.

EXAMPLE 24 Preparation of{9-[(phenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid, sodium salt

A. 9-[(Phenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

A suspension of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (300mg, 1.23 mM), benzyl bromide (210 mg, 1.23 mM), and potassium carbonate(170 mg, 1.23 mM) in 15 mL DMF was stirred at room temperature for 6hours. The mixture was diluted with 80 mL H₂O and chilled in therefrigerator. The resultant white precipitate was collected byfiltration, washed with H₂O, and dried in vacuo to afford 325 mg (79%)of the 9-[(phenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-oneas a white solid. ¹H NMR (DMSO-d6) δ7.7 (dd, 1H, J=1 and 8 Hz), 7.45-7.0(m, 7H), 5.6 (s, 2H), 3.8 (s, 3H), 3.05 (t, 2H, J=6 Hz), 2.5 (t, 2H, J=6Hz), and 2.2 (m, 2H). IR (KBr, cm⁻¹) 3421, 1726, 1676, 1636, 1473, 1450,1435, 1288, 1122, 764, 745, and 706. MS (ES) m/e 334.

Elemental Analyses for C₂₁H₁₉NO₃: Calculated: C, 75.68; H, 5.71; N,4.20. Found: C, 70.85; H, 5.53; N, 4.49.

B. 9-[(Phenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

(a) A solution of the9-[(phenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one (1.5 g,4.5 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (1.12 g, 5.0 mM)in 25 mL of toluene was stirred between 80-90° C. for 6 h. The mixturewas purified directly by column chromatography on silica gel (elutionwith methylene chloride/ethyl acetate) to afford 420 mg (28%) of the9-[(phenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole as a yellow solid.¹H NMR (DMSO-d6) δ10.25 (s, 1H), 7.7 (d, 1H, J=8 Hz), 7.4 (t, 1H, J=8Hz), 7.4-7.0 (m, 8H), 6.6 (d, 1H, J=8 Hz), 5.6 (s, 2H), and 3.8 (s, 3H).IR (CHCl₃, cm⁻¹) 1723, 1685, 1621, 1597, 1568, 1496, 1453, 1442, 1392,1286, 1267, 1156, and 1138. MS (ES) m/e 330, 332.

Elemental Analyses for C₂₁H₁₇NO₃: Calculated: C, 76.13; H, 5.14; N,4.23. Found: C, 75.90; H, 5.20; N, 4.46.

(b) To a solution of the9-[(phenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one (2.87 g,8.61 mM) in 29 ml dioxane was added 60% sodium hydride in mineral oil(0.79 g, 19.8 mM). The reaction was stirred 8 minutes, then methylbenzenesulfinate (1.80 ml, 13.8 mM) was added. The reaction was stirredan additional 1.5 h, then diluted with 43 ml dioxane and 1.13 ml aceticacid. The mixture was refluxed 1 h, diluted with ethyl acetate, andextracted with sat'd NaHCO₃ two times, then with brine. After drying(NaSO₄), evaporation in vacuo afforded 4.90 g. The mixture was purifiedby column chromatography on silica gel (elution with toluene/methylenechloride) to afford 2.31 g (81%) of the9-[(phenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole. ¹H NMR (DMSO-d6)δ10.25 (s, 1H), 7.7 (d, 1H, J=8 Hz), 7.4 (t, 1H, J=8 Hz), 7.4-7.0 (m,8H), 6.6 (d, 1H, J=8 Hz), 5.6 (s, 2H), and 3.8 (s, 3H). IR (CHCl₃, cm⁻¹)1723, 1685, 1621, 1597, 1568, 1496, 1453, 1442, 1392, 1286, 1267, 1156,and 1138. MS (ES) m/e 330, 332.

Elemental Analyses for C₂₁H₁₇NO₃: Calculated: C, 76.13; H, 5.14; N,4.23. Found: C, 75.90; H, 5.20; N, 4.46.

C. 9-[(Phenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the 9-[(phenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole(200 mg, 0.6 mM) in 4 mL MeOH and 40 mL concentrated aqueous ammoniumhydroxide was sonicated for 30 h at 40-50° C. The mixture was dilutedwith ethyl acetate and acidified to pH 1 with 5 N HCl. The aqueous layerwas extracted three times with ethyl acetate. The combined organicextracts were washed with saturated brine, dried over magnesium sulfate,filtered, and concentrated. The residue was purified by columnchromatography on silica gel (elution with gradient methylenechloride/ethyl acetate) to afford 50 mg (26%) of the9-[(phenyl)methyl]-4-hydroxy-5-carbamoyl carbazole as a white solid. ¹HNMR (DMSO-d6) δ10.5 (s, 1H), 8.8 (br s, 1H), 8.4 (br s, 1H), 7.85 (dd,1H, J=1 and 8 Hz), 7.5-7.1 (m, 9H), 6.6 (d, 1H, J=8 Hz), and 5.8 (s,2H). IR (KBr, cm⁻¹) 3428, 3198, 3063, 1631, 1599, 1579, 1562, 1496,1442, 1330, 1261, 1215, 775, and 697. MS (ES) m/e 315, 317.

Elemental Analyses for C₂₀H₁₆N₂O₂: Calculated: C, 75.95; H, 5.06; N,8.86. Found: C, 74.88; H, 5.40; N, 7.78.

D. {9-[(Phenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid, methylester

40% Methanolic Triton B (0.11 mL, 0.24 mM) was added to a solution ofthe 9-[(phenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (70 mg, 0.22 mM)in 20 mL DMF at 0° C. After 15 minutes, methyl bromoacetate (70 mg, 0.44mM) was added and the resultant mixture stirred at room temperature for5 h. The mixture was diluted with ethyl acetate, washed with 1 N HCl,H₂O, and saturated brine, dried over magnesium sulfate, filtered, andconcentrated. The residue was combined with the crude material derivedfrom a similar run utilizing 45 mg (0.14 mM [0.36 mM total]) of9-[(phenyl)methyl]-4-hydroxy-5-carbamoyl carbazole. The combinedresidues were purified by column chromatography on silica gel (elutionwith ethyl acetate) to afford 76 mg (54%) of the{9-[(phenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid, methylester as a white solid. ¹H NMR (DMSO-d6) δ7.65 (d, 1H, J=8 Hz), 7.5 (brs, 1H), 7.4-7.15 (m, 9H), 7.1 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), 5.7(s, 2H), 4.9 (s, 2H), and 3.75 (s, 3H). IR (KBr, cm⁻¹) 3367, 3200, 1760,1643, 1579, 1496, 1452, 1427, 1216, 1157, 772, and 716. MS (FD) m/e 388.

Elemental Analyses for C₂₃H₂₀N₂O₄: Calculated: C, 71.13; H, 5.15; N,7.22. Found: C, 70.77; H, 5.49; N, 6.79.

E. {9-[(Phenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid, sodiumsalt

A solution of the {9-[(phenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester (10.1 mg, 0.025 mM) and 0.025 mL (0.025 mM) of 1 NNaOH in 3 mL of ethanol was stirred for 16 h at 25° C. The resultantwhite precipitate was collected by filtration, washed with a smallamount of EtOH, then dried in vacuo to afford 7.1 mg (70%) of the{9-[(phenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid, sodium saltas a white powder. ¹H NMR (DMSO-d6) δ7.6 (d, 1H, J=8 Hz), 7.5-7.05 (m,11H), 6.55 (d, 1H, J=8 Hz), 5.75 (s, 2H), and 4.3 (s, 2H). IR (KBr,cm⁻¹) 3471, 1657, 1615, 1591, 1496, 1453, 1412, 1330, 1272, and 1151. MS(ES) m/e 373, 375, 397. Elemental Analyses for C₂₂H₁₇N₂O₄Na: C, 66.67;H, 4.29; N, 7.07. Found C, 66.75; H, 4.55; N, 6.83.

EXAMPLE 25 Preparation of{9-[(3-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid

A.9-[(3-Fluorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

40% Methanolic Triton B (2.06 mL, 4.53 mM) was slowly added dropwise toa solution of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (930.0mg, 3.82 mM) in 5 mL of DMF at 0° C. After 5 minutes, 3-fluorobenzylchloride (664.0 mg, 4.59 mM) was added and the resultant mixture stirredat 0° C. for 3 h, then at room temperature for 20 hours. The mixture wasdiluted with ethyl acetate, washed three times with 1 N HCl, three timeswith H₂O, once with saturated brine, dried over anhydrous magnesiumsulfate, filtered, and concentrated. The residue was purified by columnchromatography on silica gel (elution with gradient methylenechloride/ethyl acetate) to afford 502.3 mg (37%) of the9-[(3-fluorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-oneas a yellow foam. ¹H NMR (CDCl₃) δ7.4-7.2 (m, 4H), 6.9 (m, 1H), 6.7 (m,2H), 5.35 (s, 2H), 4.05 (s, 3H), 2.9 (t, 2H, J=6 Hz), 2.65 (t, 2H, J=6Hz), and 2.3 (m, 2H). IR (CDCl₃, cm⁻¹) 3050, 2950, 1725, 1654, 1464,1451, 1440, 1288 and 1119. MS (ES) m/e 350, 352.

Elemental Analyses for C₂₁H₁₈NO₃F: Calculated: C, 71.78; H, 5.16; N,3.99. Found: C, 72.00; H, 4.95; N, 4.11.

B. 9-[(3-Fluorophenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of the9-[(3-fluorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(434.0 mg, 1.23 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (324.0mg, 1.42 mM) in 20 mL of toluene was stirred between 70-80° C. for 5 h.The mixture was purified directly by column chromatography on silica gel(elution with methylene chloride) to afford 137.0 mg (32%) of the9-[(3-fluorophenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole as ayellow foam. ¹H NMR (DMSO-d6) δ10.2 (s, 1H), 7.7 (d, 1H, J=8 Hz), 7.4(t, 1H, J=8 Hz), 7.3 (m, 2H), 7.2 (d, 1H, J=8 Hz), 7.1 (d, 1H, J=8 Hz),7.05-6.85 (m, 3H), 6.6 (d, 1H, J=8 Hz), 5.65 (s, 2H), and 3.85 (s, 3H).IR (CHCl₃, cm⁻¹) 3200 (br), 1687, 1597, 1452, 1442, 1285, and 1267. MS(ES) m/e 348, 350.

Elemental Analyses for C₂₁H₁₆NO₃F: Calculated: C, 72.20; H, 4.62; N,4.01. Found: C, 72.30; H, 4.66; N, 4.04.

C. 9-[(3-Fluorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the 9-[(3-fluorophenyl)methyl]-4-hydroxy-5-carbomethoxycarbazole (130.8 mg, 0.37 mM) in 5 mL THF and 20 mL concentrated aqueousammonium hydroxide was sonicated for 5 h at 40-50° C. The mixture wasdiluted with ethyl acetate and acidified to pH 1 with 5 N HCl. Theaqueous layer was extracted twice with ethyl acetate. The combinedorganic extracts were washed with saturated brine, dried over magnesiumsulfate, filtered, and concentrated. The residue was purified by columnchromatography on silica gel (elution with gradient methylenechloride/ethyl acetate) to afford 57.4 mg (45%) of the9-[(3-fluorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole as a whitesolid. ¹H NMR (DMSO-d6) δ10.5 (s, 1H), 8.8 (br s, 1H), 8.4 (br s, 1H),7.8 (dd, 1H, J=1 and 8 Hz), 7.5 (m, 2H), 7.3 (m, 2H), 7.15-7.0 (m, 2H),6.95 (d, 1H, J=8 Hz), 6.85 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), and 5.7(s, 2H). IR (CHCl₃, cm⁻¹) 3431, 3200 (br), 1628, 1614, 1600, 1580, 1546,1488, 1448, 1329, 1261, and 776. MS (ES) m/e 333, 335.

Elemental Analyses for C₂₀H₁₅N₂O₂F: Calculated: C, 71.85; H, 4.52; N,8.38. Found: C, 74.45; H, 6.01; N, 8.48.

D. {9-[(3-Fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,tert-butyl ester

40% Methanolic Triton B (0.086 mL, 0.19 mM) was added to a solution ofthe 9-[(3-fluorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (51.9 mg,0.155 mM) in 3 mL DMF at room temperature. After 3 minutes, t-butylbromoacetate (87.8 mg, 0.44 mM) Was added and the resultant mixturestirred at room temperature for 5 hours. The mixture was diluted withethyl acetate, washed four times with H₂O, and saturated brine, driedover magnesium sulfate, filtered, and concentrated. The residue waspurified by column chromatography on silica gel (elution with gradientmethylene chloride/ethyl acetate) to afford 44.0 mg (63%) of the{9-[(3-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,tert-butyl ester as a white solid. ¹H NMR (DMSO-d6) δ7.6 (d, 1H, J=8Hz), 7.5-6.8 (m, 10H), 6.55 (d, 1H, J=8 Hz), 5.7 (s, 2H), 4.8 (s, 2H),and 1.45 (s, 9H). IR (CHCl₃, cm⁻¹) 3450, 3400, 1746, 1674, 1592, 1457,1369, and 1151. MS (FD) m/e 448.

Elemental Analyses for C₂₆H₂₅N₂O₄F: Calculated: C, 69.63; H, 5.62; N,6.25. Found: C, 69.35; H, 5.44; N, 6.23.

E. {9-[(3-Fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid

A solution of the{9-[(3-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,tert-butyl ester (40.0 mg, 0.089 mM) in 2 mL of trifluoroacetic acid wasstirred at room temperature for 5 hours. The solvent was removed invacuo. The residue was triturated with ethyl ether, then dried in vacuoto afford 35.0 mg (100%) of the{9-[(3-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid as awhite powder. ¹H NMR (DMSO-d6) δ13.0 (br s, 1H), 7.75 (s, 1H), 7.6 (d,1H, J=8 Hz), 7.5-7.25 (m, 5H), 7.2-6.8 (m, 4H), 6.6 (d, 1H, J=8 Hz), 5.7(s, 2H), and 4.8 (s, 2H). IR (KBr, cm⁻¹) 3423, 3400, 1736, 1637, 1615,1589, 1499, 1487, 1450, 1436, 1331, 1250, and 1156. MS (ES) m/e 391,393.

Elemental Analyses for C₂₂H₁₇N₂O₄F: Calculated: C, 67.34; H, 4.37; N,7.14. Found: C, 67.63; H, 4.22; N, 7.35.

EXAMPLE 26 Preparation of{9-[(3-Chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid

A.9-[(3-Chlorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

A suspension of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (527.0mg, 2.17 mM), 3-chlorobenzyl bromide (802.2 mg, 3.90 mM), a catalyticamount of sodium iodide (ca. 1 mg), and potassium carbonate (500.0 mg,3.62 mM) was stirred at room temperature for 150 hours. The mixture wasdiluted with ethyl acetate, washed five times with H₂O, once withsaturated brine, dried over anhydrous magnesium sulfate, filtered, andconcentrated. The residue was purified by column chromatography onsilica gel (elution with gradient methylene chloride/ethyl acetate) toafford 537.1 mg (67%) of the9-[(3-chlorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-oneas a yellow foam. ¹H NMR (CDCl₃) δ7.5-7.2 (m, 5H), 7.1 (s, 1H), 6.85 (m,1H), 5.35 (s, 2H), 4.05 (s, 3H), 2.9 (t, 2H, J=6 Hz), 2.65 (t, 2H, J=6Hz), and 2.3 (m, 2H). IR (CDCl₃, cm⁻¹) 3050, 2950, 1725, 1654, 1464,1444, 1432, 1288 and 1120. MS (ES) m/e 366, 368, 370.

Elemental Analyses for C₂₁H₁₈NO₃Cl: Calculated: C, 68.57; H, 4.93; N,3.81. Found: C, 68.61; H, 4.92; N, 3.70.

B. 9-[(3-Chlorophenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of the9-[(3-chlorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(480.5 mg, 1.31 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (325.7mg, 1.43 mM) in 50 mL of toluene was stirred between 70-80° C. for 3hours. The mixture was purified directly by column chromatography onsilica gel (elution with methylene chloride) to afford 172.6 mg (36%) ofthe 9-[(3-chlorophenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole as ayellow foam. ¹H NMR (CDCl₃) δ10.4 (s, 1H), 8.05 (d, 1H, J=8 Hz), 7.6 (d,1H, J=8 Hz), 7.4 (m, 2H), 7.3-7.1 (m, 3H), 6.9-6.7 (m, 3H), 5.55 (s,2H), and 4.15 (s, 3H). IR (CDCl₃, cm⁻¹) 3200 (br), 1684, 1598, 1442,1428, 1331, 1285, and 1267. MS (ES) m/e 364, 366, 368.

Elemental Analyses for C₂₁H₁₆NO₃Cl: Calculated: C, 68.95; H, 4.41; N,3.83. Found: C, 69.23; H, 4.52; N, 3.88.

C. 9-[(3-Chlorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the 9-[(3-chlorophenyl)methyl]-4-hydroxy-5-carbomethoxycarbazole (156.2 mg, 0.43 mM) in 5 mL THF and 20 mL concentrated aqueousammonium hydroxide was sonicated for 5 hours at 40-50° C. The mixturewas diluted with ethyl acetate and acidified to pH 1 with 5 N HCl. Theaqueous layer was extracted twice with ethyl acetate. The combinedorganic extracts were washed with saturated brine, dried over magnesiumsulfate, filtered, and concentrated. The residue was purified by columnchromatography on silica gel (elution with gradient methylenechloride/ethyl acetate) to afford 69.7 mg (47%) of the9-[(3-chlorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole as a whitesolid. ¹H NMR (DMSO-d6) δ10.5 (s, 1H), 8.8 (br s, 1H), 8.4 (br s, 1H),7.8 (dd, 1H, J=1 and 8 Hz), 7.45 (m, 2H), 7.3 (m, 3H), 7.2 (s, 1H), 7.1(d, 1H, J=8 Hz), 6.95 (s, 1H), 6.6 (d, 1H, J=8 Hz), and 5.7 (s, 2H). IR(CHCl₃, cm⁻¹) 3433, 3202 (br), 1630, 1600, 1580, 1564, 1433, 1330, 1261,and 776. MS (ES) m/e 349, 351, 353.

Elemental Analyses for C₂₀H₁₅N₂O₂Cl: Calculated: C, 68.48; H, 4.31; N,7.99. Found: C, 68.64; H, 4.55; N, 7.93.

D. {9-[(3-Chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,tert-butyl ester

40% Methanolic Triton B (0.053 mL, 0.12 mM) was added to a solution ofthe 9-[(3-chlorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (33.2 mg,0.12 mM) in 2 mL DMF at room temperature. After 3 minutes, t-butylbromoacetate (53.8 mg, 0.27 mM) was added and the resultant mixturestirred at room temperature for 20 h. The mixture was diluted with ethylacetate, washed four times with H₂O, once with saturated brine, driedover magnesium sulfate, filtered, and concentrated. The residue waspurified by column chromatography on silica gel (elution with gradientmethylene chloride/ethyl acetate) to afford 42.1 mg (95%) of the{9-[(3-chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,tert-butyl ester as a white solid. 1H NMR (DMSO-d6) δ7.6 (d, 1H, J=8Hz), 7.5-6.8 (m, 10H), 6.55 (d, 1H, J=8 Hz), 5.7 (s, 2H), 4.8 (s, 2H),and 1.45 (s, 9H). IR (CDCl₃, cm⁻¹) 3450, 3400, 1744, 1676, 1591, 1457,1369, and 1150. MS (FD) m/e 464, 466.

Elemental Analyses for C₂₆H₂₅N₂O₄Cl: Calculated: C, 67.17; H, 5.42; N,6.03. Found: C, 67.17; H, 5.65; N, 5.97.

E. {9-[(3-Chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid

A solution of the{9-[(3-chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,tert-butyl ester (35.6 mg, 0.077 mM) in 2 mL of trifluoroacetic acid wasstirred at room temperature for 6 hours. The solvent was removed invacuo. The residue was triturated with ethyl acetate, then dried invacuo to afford 31.4 mg (100%) of the{9-[(3-chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid as awhite powder. ¹H NMR (DMSO-d6) δ13.0 (br s, 1H), 7.75 (s, 1H), 7.6 (d,1H, J=8 Hz), 7.4-7.25 (m, 7H), 7.2 (d, 1H, J=8 Hz), 7.0 (br t, 1H), 6.6(d, 1H, J=8 Hz), 5.7 (s, 2H), and 4.8 (s, 2H). IR (KBr, cm⁻¹) 3456,3416, 3335, 1735, 1638, 1617, 1580, 1499, 1452, 1431, 1431, 1329, 1255,1157, 772, 764, and 717. MS (ES) m/e 407, 409, 411.

Elemental Analyses for C₂₂H₁₇N₂O₄Cl: Calculated: C, 64.63; H, 4.19; N,6.85. Found: C, 64.55; H, 4.12; N, 6.74.

EXAMPLE 27 Preparation of{9-[(3-phenoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid

A.9-[(3-Phenoxyphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

40% Methanolic Triton B (1.53 mL, 3.4 mM) was slowly added dropwise to asolution of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (554.6 mg,2.28 mM) in 5 mL of DMF at 25° C. After 5 minutes, 3-phenoxybenzylchloride (748.0 mg, 3.42 mM) was added and the resultant mixture stirredat room temperature for 24 hours. The mixture was diluted with ethylacetate, washed three times with 1N HCl, three times with H₂O, once withsaturated brine, dried over anhydrous magnesium sulfate, filtered, andconcentrated. The residue was purified by column chromatography onsilica gel (elution with gradient methylene chloride/ethyl acetate) toafford 563.6 mg (58%) of9-[(3-phenoxyphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-oneas a thick yellow oil. ¹H NMR (DMSO-d6) δ7.7 (dd, 1H, J=1 and 8 Hz),7.4-7.2 (m, 6H), 7.1 (t, 1H, J=8 Hz), 6.95 (m, 2H), 6.8-6.7 (m, 2H),5.55 (s, 2H), 3.75 (s, 3H), 3.0 (t, 2H, J=6 Hz), 2.45 (t, 2H, J=6 Hz),and 2.1 (m, 2H). IR (CDCl₃, cm⁻¹) 3050, 2950, 1725, 1653, 1585, 1487,1465, 1288, 1252, and 1119. MS (ES) m/e 426.

Elemental Analyses for C₂₇H₂₃NO₄: Calculated: C, 76.22; H, 5.45; N,3.29. Found: C, 76.21; H, 5.35; N, 3.36.

B. 9-[(3-Phenoxyphenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of the9-[(3-phenoxyphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(544.5 mg, 1.28 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (337.5mg, 1.48 mM) in 20 mL of toluene was stirred between 70-80° C. for 4hours. The mixture was purified directly by column chromatography onsilica gel (elution with methylene chloride) to afford 107.0 mg (20%) of9-[(3-phenoxyphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole as ayellow powder. ¹H NMR (DMSO-d6) δ10.4 (s, 1H), 7.7 (d, 1H, J=8 Hz),7.4-6.7 (m, 13H), 6.55 (d, 1H, J=8 Hz), 5.65 (s, 2H), and 3.85 (s, 3H).IR (CDCl₃, cm⁻¹) 3200 (br), 1687, 1597, 1584, 1487, 1441, 1332, 1284,1267, and 1252. MS (ES) m/e 422, 424.

Elemental Analyses for C₂₇H₂₁NO₄: Calculated: C, 76.58; H, 5.00; N,3.31. Found: C, 76.68; H, 5.20; N, 3.40.

c) 9-[(3-Phenoxyphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the 9-[(3-phenoxyphenyl)methyl]-4-hydroxy-5-carbomethoxycarbazole (100.0 mg, 0.24 mM) in 5 mL THF and 20 mL concentrated aqueousammonium hydroxide was sonicated for 24 hours at 40-50° C. The mixturewas diluted with ethyl acetate and acidified to pH 1 with 5 N HCl. Theaqueous layer was extracted twice with ethyl acetate. The combinedorganic extracts were washed with saturated brine, dried over magnesiumsulfate, filtered, and concentrated. The residue was purified by columnchromatography on silica gel (elution with gradient methylenechloride/ethyl acetate) to afford 41.0 mg (43%) of the9-[(3-phenoxyphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole as a whitesolid. ¹H NMR (DMSO-d6) δ10.5 (s, 1H), 8.8 (br s, 1H), 8.4 (br s, 1H),7.8 (dd, 1H, J=1 and 8 Hz), 7.5-6.7 (m, 13H), 6.6 (d, 1H, J=8 Hz), and5.7 (s, 2H). MS (ES) m/e 407, 409.

Elemental Analyses for C₂₆H₂₀N₂O₃: Calculated: C, 76.46; H, 4.94; N,6.86. Found: C, 75.66; H, 5.29; N, 6.58.

D. {9-[(3-Phenoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,tert-butyl ester

40% Methanolic Triton B (0.054 mL, 0.12 mM) was added to a solution ofthe 9-[(3-phenoxyphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (39.5mg, 0.10 mM) in 3 mL DMF at room temperature. After 3 minutes, t-butylbromoacetate (54.8 mg, 0.27 mM) was added and the resultant mixturestirred at room temperature for 5 hours. The mixture was diluted withethyl acetate, washed four times with H₂O, once with saturated brine,dried over magnesium sulfate, filtered, and concentrated. The residuewas purified by column chromatography on silica gel (elution withgradient methylene chloride/ethyl acetate) to afford 33.0 mg (65%) ofthe {9-[(3-phenoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, tert-butyl ester as a white solid. ¹H NMR (DMSO-d6) δ7.6 (d, 1H,J=8 Hz), 7.5-6.8 (m, 15H), 6.55 (d, 1H, J=8 Hz), 5.7 (s, 2H), 4.8 (s,2H), and 1.45 (s, 9H). IR (KBr, cm⁻¹) 3450, 1748, 1670, 1582, 1486,1246, 1225, and 1151. MS (ES) m/e 523.

Elemental Analyses for C₃₂H₃₀N₂O₅: Calculated: C, 73.55; H, 5.79; N,5.36. Found: C, 73.84; H, 5.83; N, 5.30.

E. {9-[(3-Phenoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid

A solution of the{9-[(3-phenoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,tert-butyl ester (30.0 mg, 0.063 mM) in 2 mL of trifluoroacetic acid wasstirred at room temperature for 6 hours. The solvent was removed invacuo. The residue was dried in vacuo to afford 30.0 mg (100%) of the{9-[(3-phenoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid asa white powder. ¹H NMR (DMSO-d6) δ13.0 (br s, 1H), 7.75 (s, 1H), 7.6 (d,1H, J=8 Hz), 7.5-6.8 (m, 14H), 6.6 (d, 1H, J=8 Hz), 5.7 (s, 2H), and 4.8(s, 2H). IR (KBr, cm⁻¹) 3450, 3400, 1740, 1651, 1592, 1585, 1487, 1457,1441, 1329, 1250, and 1158. MS (ES) m/e 465, 467.

Elemental Analyses for C₂₈H₂₂N₂O₅: Calculated: C, 72.09; H, 4.75; N,6.00. Found: C, 67.65; H, 4.64; N, 6.02.

EXAMPLE 28 Preparation of{9-[(2-Fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid

A.9-[(2-Fluorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

40% Methanolic Triton B (2.82 mL, 6.2 mM) was slowly added dropwise to asolution of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (1.27 g,5.22 mM) in 10 mL of DMF at 25° C. After 5 minutes, 2-fluorobenzylbromide (1.19 g, 6.2 mM) was added and the resultant mixture stirred atroom temperature for 17 days. The mixture was diluted with ethylacetate, washed five times with H₂O, once with saturated brine, driedover anhydrous magnesium sulfate, filtered, and concentrated. Theresidue was purified by column chromatography on silica gel (elutionwith gradient methylene chloride/ethyl acetate) to afford 1.00 g (55%)of the9-[(2-fluorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-oneas a tan foam. ¹H NMR (DMSO-d6) δ7.7 (dd, 1H, J=1 and 8 Hz), 7.4-7.2 (m,4H), 7.1 (t, 1H, J=8 Hz), 6.7 (t, 1H, J=8 Hz), 5.65 (s, 2H), 3.8 (s,3H), 3.0 (t, 2H, J=6 Hz), 2.45 (t, 2H, J=6 Hz), and 2.1 (m, 2H). IR(CDCl₃, cm⁻¹) 3050, 2950, 1725, 1652, 1464, 1441, 1288 and 1120. MS (ES)m/e 350, 352.

Elemental Analyses for C₂₁H₁₈NO₃F: Calculated: C, 71.78; H, 5.16; N,3.99. Found: C, 71.51; H, 5.08; N, 3.85.

B. 9-[(2-Fluorophenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of the9-[(2-fluorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(1.00 g, 2.85 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (800.0mg, 3.51 mM) in 50 mL of toluene was stirred between 70-80° C. for 6 h.The mixture was purified directly by column chromatography on silica gel(elution with methylene chloride) to afford 250.0 mg (25%) of the9-[(2-fluorophenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole as a darksolid. ¹H NMR (DMSO-d6) δ10.2 (s, 1H), 7.7 (d, 1H, J=8 Hz), 7.4 (t, 1H,J=8 Hz), 7.3-6.85 (m, 6H), 6.75 (dt, 1H, J=0.5 and 8 Hz), 6.6 (d, 1H,J=8 Hz), 5.7 (s, 2H), and 3.85 (s, 3H). IR (CHCl₃, cm⁻¹) 3200 (br),1686, 1598, 1490, 1442, 1285, 1268, 1230, and 1139. MS (ES) m/e 348,350.

Elemental Analyses for C₂₁H₁₆NO₃F: Calculated: C, 72.20; H, 4.62; N,4.01. Found: C, 71.32; H, 4.75; N, 4.11.

C. 9-[(2-Fluorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the 9-[(2-fluorophenyl)methyl]-4-hydroxy-5-carbomethoxycarbazole (237.5 mg, 0.68 mM) in 10 mL THF and 40 mL concentratedaqueous ammonium hydroxide was sonicated for 20 h at 40-50° C. Themixture was diluted with ethyl acetate and acidified to pH 1 with 5 NHCl. The aqueous layer was extracted twice with ethyl acetate. Thecombined organic extracts were washed with saturated brine, dried overmagnesium sulfate, filtered, and concentrated. The residue was purifiedby column chromatography on silica gel (elution with gradient methylenechloride/ethyl acetate) to afford 89.7 mg (40%) of the9-[(2-fluorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole as a whitesolid. ¹H NMR (DMSO-d6) δ10.5 (s, 1H), 8.8 (br s, 1H), 8.4 (br s, 1H),7.8 (dd, 1H, J=1 and 8 Hz), 7.5-6.9 (m, 7H), 6.65 (m, 2H), and 5.75 (s,2H). IR (KBr, cm⁻¹) 3395, 3192 (br), 1621, 1599, 1580, 1564, 1491, 1455,1334, 1261, and 774. MS (ES) m/e 333, 335.

Elemental Analyses for C₂₀H₁₅N₂O₂F: Calculated: C, 71.85; H, 4.52; N,8.38. Found: C, 72.57; H, 4.88; N, 7.84.

D. {9-[(2-Fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester

40% Methanolic Triton B (0.14 mL, 0.31 mM) was added to a solution ofthe 9-[(2-fluorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (51.9 mg,0.155 mM) in 5 mL DMF at room temperature. After 3 minutes, methylbromoacetate (110.5 mg, 0.72 mM) was added and the resultant mixturestirred at room temperature for 20 hours. The mixture was diluted withethyl acetate, washed four times with H₂O, once with saturated brine,dried over magnesium sulfate, filtered, and concentrated. The residuewas purified by column chromatography on silica gel (elution withgradient methylene chloride/ethyl acetate) to afford 72.8 mg (71%) ofthe {9-[(2-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester as a white solid. ¹H NMR (DMSO-d6) δ7.65 (d, 1H, J=8 Hz),7.5 (s, 1H), 7.4-7.2 (m, 5H), 7.15 (s, 1H), 7.1 (d, 1H, J=8 Hz), 7.05(t, 1H, J=8 Hz), 6.7 (t, 1H, J=8 Hz), 6.55 (d, 1H, J=8 Hz), 5.7 (s, 2H),4.85 (s, 2H), and 3.7 (s, 3H). IR (CHCl₃, cm⁻¹) 3436, 1763, 1675, 1457,1327, 1208, 1198, 1150, 1102, 772, 756, and 719. MS (FD) m/e 407.

Elemental Analyses for C₂₃H₁₉N₂O₄F: Calculated: C, 67.97; H, 4.71; N,6.89. Found: C, 68.00; H, 4.92; N, 6.75.

E. {9-[(2-Fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid

A solution of the{9-[(2-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester (47.9 mg, 0.118 mM) and 0.28 mL (0.28 mM) of 1 N NaOH in 10mL of methanol was sonicated for 6 hours at 50-60° C., then stirred atroom temperature for 16 hours. The mixture was diluted with ethylacetate and acidified to pH 1 with 5 N HCl. The aqueous layer wasextracted twice with ethyl acetate. The combined organic extracts werewashed with saturated brine, dried over magnesium sulfate, filtered, andconcentrated to afford 42.8 mg (92%) of the{9-[(2-fluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid as awhite powder. ¹H NMR (DMSO-d6) δ7.75 (s, 1H), 7.6 (d, 1H, J=8 Hz),7.5-7.25 (m, 6H), 7.15 (d, 1H, J=8 Hz), 7.05 (dt, 1H, J=1 and 8 Hz),6.75 (dt, 1H, J=1 and 8 Hz), 6.65 (d, 1H, J=8 Hz), 5.7 (s, 2H), and 4.8(s, 2H). IR (KBr, cm⁻¹) 3428, 3400, 1737, 1635, 1617, 1583, 1572, 1500,1491, 1453, 1434, 1330, 1248, 1158, 1098, 760, and 714. MS (FD) m/e 392.

Elemental Analyses for C₂₂H₁₇N₂O₄F: Calculated: C, 67.34; H, 4.37; N,7.14. Found: C, 66.65; H, 4.55; N, 6.92.

EXAMPLE 29 Preparation of{9-[(2-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid

A.9-[(2-Trifluoromethylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

40% Methanolic Triton B (2.18 mL, 4.8 mM) was slowly added dropwise to asolution of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (973 mg,4.0 mM) in 10 mL of DMF at −10° C. After 30 minutes,2-(trifluoromethyl)benzyl bromide (1.3 g, 5.2 mM) was added and theresultant mixture stirred at room temperature for 23 hours. The mixturewas diluted with ethyl acetate, washed five times with H₂O, once withsaturated brine, dried over anhydrous magnesium sulfate, filtered,concentrated, and dried in vacuo to afford 1.34 g (83%) of the9-[(2-trifluoromethylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-oneas a tan solid. ¹H NMR (CDCl₃) δ7.7 (d, 1H, J=8 Hz), 7.4-7.1 (m, 5H),6.4 (d, 1H, J=8 Hz), 5.5 (s, 2H), 4.05 (s, 3H), 2.8 (t, 2H, J=6 Hz), 2.6(t, 2H, J=6 Hz), and 2.2 (m, 2H). IR (KBr, cm⁻¹) 1729 and 1656. MS (ES)m/e 402.

Elemental Analyses for C₂₂H₁₈NO₃F₃: Calculated: C, 65.83; H, 4.52; N,3.49; F, 14.20. Found: C, 66.07; H, 4.59; N, 3.20; F, 13.95.

B. 9-[(2-Trifluoromethylphenyl)methyl]-4-hydroxy-5-carbomethoxycarbazole

A solution of the9-[(2-trifluoromethylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(1.21 g, 3.00 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (764 mg,3.3 mM) in 25 mL of toluene was stirred between 80-90° C. for 7 h. Themixture was purified directly by column chromatography on silica gel(elution with methylene chloride) to afford 340.0 mg (28%) of the9-[(2-trifluoromethylphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazoleas a brown powder. ¹H NMR (CDCl₃) δ10.4 (s, 1H), 8.0 (d, 1H, J=8 Hz),7.7 (d, 1H, J=8 Hz), 7.5-7.2 (m, 5H), 6.85 (m, 2H), 6.45 (d, 1H, J=8Hz), 5.7 (s, 2H), and 4.1 (s, 3H). IR (CDCl₃, cm⁻¹) 3200 (br) and 1677.MS (ES) m/e 398, 400.

Elemental Analyses for C₂₂H₁₆NO₃F₃: Calculated: C, 66.17; H, 4.04; N,3.51; F, 14.27. Found: C, 66.93; H, 4.06; N, 3.54; F, 14.00.

C. 9-[(2-Trifluoromethylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the9-[(2-trifluoromethylphenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole(310 mg, 0.77 mM) in 5 mL THF and 20 mL concentrated aqueous ammoniumhydroxide was sonicated for 25 hours at 40-50° C. The mixture wasdiluted with ethyl acetate and acidified to pH 1 with 5 N HCl. Theaqueous layer was extracted twice with ethyl acetate. The combinedorganic extracts were washed with saturated brine, dried over magnesiumsulfate, filtered, and concentrated. The residue was purified by columnchromatography on silica gel (elution with gradient methylenechloride/ethyl acetate) to afford 145 mg (49%) of the9-[(2-trifluoromethylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole as awhite solid. ¹H NMR (DMSO-d6) δ10.5 (s, 1H), 8.8 (br s, 1H), 8.4 (br s,1H), 7.8 (d, 1H, J=8 Hz), 7.6-7.2 (m, 6H), 6.85 (d, 1H, J=8 Hz), 6.6 (d,1H, J=8 Hz), 6.25 (d, 1H, J=8 Hz), and 5.8 (s, 2H). IR (KBr, cm⁻¹) 3460,3360, and 1589. MS (ES) m/e 383, 385.

Elemental Analyses for C₂₁H₁₅N₂O₂F₃: Calculated: C, 65.62; H, 3.93; N,7.29; F, 14.83. Found: C, 65.65; H, 3.94; N, 7.51; F, 14.94.

D.{9-[(2-Trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester

40% Methanolic Triton B (0.18 mL, 0.4 mM) was added to a solution of the9-[(2-trifluoromethylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (120mg, 0.31 mM) in 5 mL DMF at room temperature. After 15 minutes, methylbromoacetate (98.5 mg, 0.62 mM) was added and the resultant mixturestirred at room temperature for 4.5 hours. The mixture was diluted withethyl acetate, washed four times with H₂O, 1 N HCl, H₂O, sat. NaHCO₃,and saturated brine, dried over magnesium sulfate, filtered, andconcentrated. The residue was purified by column chromatography onsilica gel (elution with gradient methylene chloride/ethyl acetate/THF)to afford 95 mg (67%) of the{9-[(2-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester as a white solid. ¹H NMR (CDCl₃) δ7.7 (d, 1H, J=8Hz), 7.5-7.2 (m, 6H), 6.95 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), 6.45(d, 1H, J=8 Hz), 6.3 (br s, 1H), 6.1 (br s, 1H), 5.7 (s, 2H), 4.9 (s,2H), and 3.9 (s, 3H). IR (CHCl₃, cm⁻¹) 1763 and 1674. MS (ES) m/e 457.

Elemental Analyses for C₂₄H₁₉N₂O₄F₃: Calculated: C, 63.16; H, 4.20; N,6.14. Found: C, 61.82; H, 4.31; N, 5.86.

E.{9-[(2-Trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid

A solution of the{9-[(2-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester (70 mg, 0.153 mM) and 0.21 mL (0.21 mM) of 1 N NaOHin 5 mL of methanol was sonicated for 23 hours at 50-60° C. The methanolwas removed in vacuo and the mixture acidified to pH 1.6 with 1 N HCl.The resultant white precipitate was collected by filtration, washed withH₂O, small amounts of MeOH and diethyl ether, then dried in vacuo toafford 59 mg (88%) of the{9-[(2-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid as a white powder. ¹H NMR (DMSO-d6) δ13.0 (br s, 1H), 7.8 (d, 1H,J=8 Hz), 7.75 (s, 1H), 7.5-7.3 (m, 6H), 7.1 (d, 1H, J=8 Hz), 7.05 (d,1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), 6.3 (d, 1H, J=8 Hz), 5.8 (s, 2H), and4.8 (s, 2H). IR (KBr, cm⁻¹) 1737 and 1635. MS (ES) m/e 441, 443.

Elemental Analyses for C₂₃H₁₇N₂O₄F₃: Calculated: C, 62.45; H, 3.87; N,6.33; F, 12.88. Found: C, 60.86; H, 3.89; N, 6.08; F, 12.59.

EXAMPLE 30 Preparation of{9-[(2-benzylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt

A. 2-Benzylbenzyl bromide

A solution of phosphorus tribromide (2.1 mL, 6.0 g, 22.1 mM) in 30 mL ofcarbon tetrachloride was slowly added dropwise to solution of2-benzylbenzyl alcohol (1.98 g, 10 mM) in 70 mL of carbon tetrachlorideat 0° C. The mixture was stirred at 0° C. for 2 hours, then at roomtemperature for 2 hours. The solvent was removed in vacuo and theresidue diluted with ethyl acetate and saturated aqueous sodiumbicarbonate. The organic layer was washed with brine, dried overmagnesium sulfate, filtered, and concentrated to afford 2.6 g (99%) of2-benzylbenzyl bromide as a yellow solid. ¹H NMR (DMSO-d6) δ7.5-7.0 (m,9H), 4.7 (s, 2H), and 4.15 (s, 2H). IR (CDCl₃, cm⁻¹) 3065, 1601, 1495,and 1453. MS (FD) m/e 260, 262.

Elemental Analyses for C₁₄H₁₃Br: Calculated: C, 64.37; H, 4.98; N, 0.00.Found: C, 65.26; H, 5.26; N, 0.00.

B.9-[(2-Benzylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

40% Methanolic Triton B (0.95 mL, 2.1 mM) was slowly added dropwise to asolution of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (510 mg,2.1 mM) in 30 mL of DMF at −10° C. After 3 minutes, 2-benzylbenzylbromide (548 mg, 2.1 mM) was added and the resultant mixture stirred atroom temperature for 6 hours. The mixture was diluted with ethyl acetateand 1 N HCl, washed twice with H₂O, once with saturated brine, driedover anhydrous magnesium sulfate, filtered, concentrated, and dried invacuo. The reside was purified by column chromatography on silica gel(elution with ethyl acetate) to afford 324 mg (36%) of the9-[(2-benzylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-oneas a tan solid. ¹H NMR (CDCl₃) δ7.45-7.0 (m, 10H), 6.9 (d, 1H, J=8 Hz),6.3 (d, 1H, J=8 Hz), 5.2 (s, 2H), 4.15 (s, 2H), 4.05 (s, 3H), 2.5 (m,4H), and 2.1 (m, 2H). IR (KBr, cm⁻¹) 1726, 1653, 1466, 1443, 1411, 1283,1200, 1119, and 749. MS (ES) m/e 422, 424.

Elemental Analyses for C₂₈H₂₅NO₃: Calculated: C, 79.43; H, 5.91; N,3.31. Found: C, 79.58; H, 5.94; N, 3.32.

C. 9-[(2-Benzylphenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of the9-[(2-benzylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(480 mg, 1.14 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (250 mg,5.0 mM) in 30 mL of toluene was stirred between 80-90° C. for 5 hours.The mixture was purified directly by column chromatography on silica gel(elution with methylene chloride/ethyl acetate) to afford 166 mg (35%)of the 9-[(2-benzylphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole asa yellow solid. ¹H NMR (CDCl₃) δ10.4 (s, 1H), 8.0 (d, 1H, J=8 Hz),7.4-7.0 (m, 11H), 6.8 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), 6.4 (d, 1H,J=8 Hz), 5.4 (s, 2H), 4.25 (s, 2H), and 4.1 (s, 3H). IR (CDCl₃, cm⁻¹)1684, 1597, 1495, 1452, 1442, 1333, 1284, 1269, and 1140. MS (ES) m/e420, 422.

D. 9-[(2-Benzylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the 9-[(2-benzylphenyl)methyl]-4-hydroxy-5-carbomethoxycarbazole (166 mg, 0.39 mM) in 8 mL THF and 30 mL concentrated aqueousammonium hydroxide was sonicated for 30 hours at 40-50° C. The mixturewas diluted with ethyl acetate and acidified to pH 1 with 5 N HCl. Theaqueous layer was extracted twice with ethyl acetate. The combinedorganic extracts were washed with saturated brine, dried over magnesiumsulfate, filtered, and concentrated. The residue was purified by columnchromatography on silica gel (elution with ethyl acetate) to afford 70mg (44%) of the 9-[(2-benzylphenyl)methyl]-4-hydroxy-5-carbamoylcarbazole as a white solid. ¹H NMR (CDCl₃) δ8.0 (d, 1H, J=8 Hz), 7.4-7.0(m, 12H), 6.8 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), 6.5 (m, 1H), 6.4 (m,1H), 5.8 (s, 1H), 5.4 (s, 2H), and 4.2 (s, 2H). MS (ES) m/e 405, 407.

E. {9-[(2-Benzylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester

40% Methanolic Triton B (0.12 mL, 0.26 mM) was added to a solution ofthe 9-[(2-benzylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (70 mg,0.17 mM) in 10 mL DMF at 25° C. After 3 minutes, methyl bromoacetate (55mg, 0.34 mM) was added and the resultant mixture stirred at roomtemperature for 25 hours. The mixture was diluted with ethyl acetate,washed with 1 N HCl, H₂O, and saturated brine, dried over magnesiumsulfate, filtered, and concentrated. The residue was purified by columnchromatography on silica gel (elution with ethyl acetate) to afford 60mg (73%) of the{9-[(2-benzylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester as a white solid. ¹H NMR (CDCl₃) δ7.4-7.00 (m, 14H), 6.65(d, 1H, J=8 Hz), 6.55 (d, 1H, J=8 Hz), 6.4 (d, 1H, J=8 Hz), 5.4 (s, 2H),4.95 (s, 2H), 4.2 (s, 2H), and 3.80 (s, 3H). IR (KBr, cm⁻¹) 3414, 3186,1759, 1625, 1583, 1500, 1452, 1424, 1340, 1325, 1213, 1199, and 1108. MS(ES) m/e 477, 479.

Elemental Analyses for C₃₀H₂₆N₂O₄: Calculated: C, 75.31; H, 5.44; N,5.86. Found: C, 75.08; H, 5.61; N, 5.70.

F. {9-[(2-Benzylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt

A solution of the{9-[(2-benzylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester (16.2 mg, 0.034 mM) and 0.034 mL (0.034 mM) of 1 N NaOH in3 mL of ethanol was stirred for 16 hours at 25° C. The resultant whiteprecipitate was collected by filtration, washed with a small amount ofEtOH, then dried in vacuo to afford 7.1 mg (70%) of the{9-[(2-benzylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt as a white powder. ¹H NMR (DMSO-d6) δ7.5-6.8 (m, 14H), 6.65(d, 1H, J=8 Hz), 6.55 (d, 1H, J=8 Hz), 6.05 (d, 1H, J=8 Hz), 5.55 (s,2H), 4.35 (s, 2H), and 4.3 (s, 2H). IR (CDCl₃, cm⁻¹) 1666, 1616, 1495,1452, and 1422. MS (ES) m/e 463, 465.

Elemental Analyses for C₂₉H₂₃N₂O₄Na: Calculated: C, 71.60; H, 4.73; N,5.76. Found: C, 64.68; H, 4.79; N, 5.08.

EXAMPLE 31 Preparation of{9-[(3-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, sodium salt

A.9-[(3-Trifluoromethylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

40% Methanolic Triton B (2.18 mL, 4.8 mM) was slowly added dropwise to asolution of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (973 mg,4.0 mM) in 10 mL of DMF at −10° C. After 30 minutes,3-(trifluoromethyl)benzyl chloride (1.53 g, 6.0 mM) and sodium iodide(900 mg, 6.0 mM) were added and the resultant mixture stirred at roomtemperature for 25 hours. The mixture was diluted with ethyl acetate,washed five times with H₂O, 1 N HCl, H₂O, sat NaHCO₃, and saturatedbrine, dried over anhydrous magnesium sulfate, filtered, concentrated,and dried in vacuo. The residue was purified by column chromatography onsilica gel (elution with gradient methylene chloride/ethyl acetate) toafford 1.02 g (63%) of the9-[(3-trifluoromethylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-oneas a tan solid. ¹H NMR (CDCl₃) δ7.6 (d, 1H, J=8 Hz), 7.45-7.2 (m, 5H),7.0 (d, 1H, J=8 Hz), 5.4 (s, 2H), 4.05 (s, 3H), 2.85 (t, 2H, J=6 Hz),2.6 (t, 2H, J=6 Hz), and 2.2 (m, 2H). IR (KBr, cm⁻¹) 1727 and 1652. MS(ES) m/e 400, 402.

Elemental Analyses for C₂₂H₁₈NO₃F₃: Calculated: C, 65.83; H, 4.52; N,3.49; F, 14.20. Found: C, 65.63; H, 4.58; N, 3.39; F, 14.14.

B. 9-[(3-Trifluoromethylphenyl)methyl]-4-hydroxy-5-carbomethoxycarbazole

A solution of the9-[(3-trifluoromethylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(1.21 g, 3.00 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (764 mg,3.3 mM) in 25 mL of toluene was stirred between 80-90° C. for 7 hours.The mixture was purified directly by column chromatography on silica gel(elution with methylene chloride) to afford 340.0 mg (28%) of the9-[(3-trifluoromethylphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazoleas a yellow solid. ¹H NMR (CDCl₃) δ10.35 (s, 1H), 8.0 (d, 1H, J=8 Hz),7.6-7.3 (m, 6H), 7.05 (d, 1H, J=8 Hz), 6.85 (m, 2H), 5.6 (s, 2H), and4.1 (s, 3H). IR (CHCl₃, cm⁻¹) 3378 and 1712. MS (ES) m/e 398, 400.

Elemental Analyses for C₂₂H₁₆NO₃F₃: Calculated: C, 66.17; H, 4.04; N,3.51. Found: C, 66.99; H, 4.12; N, 3.53; F.

C. 9-[(3-Trifluoromethylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the9-[(3-trifluoromethylphenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole(250 mg, 0.625 mM) in 5 mL THF and 20 mL concentrated aqueous ammoniumhydroxide was sonicated for 30 h at 40-50° C. The mixture was dilutedwith ethyl acetate and acidified to pH 1 with 5 N HCl. The aqueous layerwas extracted three times with ethyl acetate. The combined organicextracts were washed with saturated brine, dried over magnesium sulfate,filtered, and concentrated. The residue was purified by columnchromatography on silica gel (elution with gradient methylenechloride/ethyl acetate) to afford 120 mg (50%) of the9-[(3-trifluoromethylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole as awhite solid. ¹H NMR (DMSO-d6) δ10.5 (s, 1H), 8.8 (br s, 1H), 8.4 (br s,1H), 7.8 (d, 1H, J=8 Hz), 7.6-7.5 (m, 5H), 7.3 (t, 1H, J=8 Hz), 7.15 (d,1H, J=8 Hz), 7.1 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), and 5.8 (s, 2H).IR (KBr, cm⁻¹) 3429, 3206, and 1630. MS (ES) m/e 383, 385.

Elemental Analyses for C₂₁H₁₅N₂O₂F₃: Calculated: C, 65.62; H, 3.93; N,7.29. Found: C, 67.50; H, 4.00; N, 7.19.

D.{9-[(3-Trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester

40% Methanolic Triton B (0.18 mL, 0.4 mM) was added to a solution of the9-[(3-trifluoromethylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (115mg, 0.3 mN) in 5 mL DMF at room temperature. After 15 minutes, methylbromoacetate (95 mg, 0.6 mM) was added and the resultant mixture stirredat room temperature for 22 hours. The mixture was diluted with ethylacetate, washed four times with H₂O, 1 N HCl, H₂O, sat. NaHCO₃, andsaturated brine, dried over magnesium sulfate, filtered, andconcentrated. The residue was purified by column chromatography onsilica gel (elution with ethyl acetate) to afford 120 mg (88%) of the{9-[(3-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester as a white solid. ¹H NMR (CDCl₃) δ7.5-7.2 (m, 7H),7.1 (d, 1H, J=8 Hz), 7.0 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), 6.4 (brs, 1H), 6.0 (br s, 1H), 5.55 (s, 2H), 4.9 (s, 2H), and 3.9 (s, 3H). IR(KBr, cm⁻¹) 1763 and 1673. MS (ES) m/e 457.

Elemental Analyses for C₂₄H₁₉N₂O₄F₃: Calculated: C, 63.16; H, 4.20; N,6.14. Found: C, 61.37; H, 4.19; N, 5.77.

E.{9-[(3-Trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, sodium salt

A solution of the{9-[(3-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester (91 mg, 0.153 mM) and 0.22 mL (0.22 mM) of 1 N NaOHin 8 mL of ethanol was stirred for 17 h at 25° C. The ethanol wasremoved in vacuo. The resultant white precipitate was collected byfiltration, washed with small amounts of EtOH and diethyl ether, thendried in vacuo to afford 75 mg (81%) of the{9-[(3-trifluoromethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, sodium salt as a white powder. ¹H NMR (DMSO-d6) δ7.65 (s, 1H), 7.6(m, 4H), 7.45 (t, 1H, J=8 Hz), 7.35 (t, 1H, J=8 Hz), 7.3 (t, 1H, J=8Hz), 7.2 (d, 1H, J=8 Hz), 7.1 (d, 1H, J=8 Hz), 7.05 (d, 1H, J=8 Hz), 6.5(d, 1H, J=8 Hz), 5.75 (s, 2H), and 4.3 (s, 2H). IR (KBr, cm⁻¹) 1665 and1618. MS (ES) m/e 441, 443.

Elemental Analyses for C₂₃H₁₆N₂O₄F₃Na: Calculated: C, 59.49; H, 3.47; N,6.03. Found: C, 60.69; H, 3.78; N, 5.75.

EXAMPLE 32 Preparation of{9-[(1-naphthyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid, sodiumsalt

A. 9-[(1-Naphthyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

40% Methanolic Triton B (1.6 mL, 3.6 mM) was slowly added dropwise to asolution of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (870 mg,3.6 mM) in 30 mL of DMF at 25° C. After 5 minutes, 1-chloromethylnaphthylene (642 mg, 3.6 mM) and sodium iodide (450 mg, 3.0 mM) wereadded and the resultant mixture stirred at room temperature for 25hours. The mixture was diluted with ethyl acetate, washed five timeswith H₂O, 1 N HCl, H₂O, sat NaHCO₃, and saturated brine, dried overanhydrous magnesium sulfate, filtered, concentrated, and dried in vacuo.The residue was purified by column chromatography on silica gel (elutionwith ethyl acetate) to afford 560 mg (41%) of the9-[(1-naphthyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one as ayellow solid. ¹H NMR (CDCl₃) δ8.0 (d, 1H, J=8 Hz), 7.9 (d, 1H, J=8 Hz),7.7 (d, 1H, J=8 Hz), 7.6 (t, 1H, J=8 Hz), 7.55 (t, 1H, J=8 Hz), 7.35 (d,1H, J=8 Hz), 7.15-7.05 (m, 3H), 6.4 (d, 1H, J=8 Hz), 5.8 (s, 2H), 4.05(s, 3H), 2.8 (t, 2H, J=6 Hz), 2.55 (t, 2H, J=6 Hz), and 2.2 (m, 2H). IR(KBr, cm⁻¹) 1721, 1646, 1464, 1448, 1438, 1285, 1122, 796, and 761. MS(ES) m/e 382, 384.

Elemental Analyses for C₂₅H₂₁NO₃: Calculated: C, 78.33; H, 5.48; N,3.66. Found: C, 76.28; H, 5.46; N, 3.93.

B. 9-[(1-Naphthyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of the9-[(1-naphthyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one (540mg, 1.4 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (304 mg, 1.33mM) in 30 mL of toluene was stirred between 80-90° C. for 5 hours. Themixture was purified directly by column chromatography on silica gel(elution with ethyl acetate) to afford 240.0 mg (45%) of the9-[(1-naphthyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole as a yellowsolid. ¹H NMR (DMSO-d6) δ10.25 (s, 1H), 8.35 (d, 1H, J=8 Hz), 8.0 (d,1H, J=8 Hz), 7.8 (d, 1H, J=8 Hz), 7.6-7.1 (m, 7H), 6.9 (d, 1H, J=8 Hz),6.6 (d, 1H, J=8 Hz), 6.3 (d, 1H, J=8 Hz), 6.15 (s, 2H), and 3.8 (s, 3H).IR (CHCl₃, cm⁻¹) 1685, 1598, 1442, 1269, and 1140. MS (ES) m/e 380, 382.

Elemental Analyses for C₂₅H₁₉NO₃: Calculated: C, 78.74; H, 4.99; N,3.67. Found C, 78.67; H, 5.14; N, 3.54.

C. 9-[(1-Naphthyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the 9-[(1-naphthyl)methyl]-4-hydroxy-5-carbomethoxycarbazole (210 mg, 0.55 mM) in 10 mL THF and 30 mL concentrated aqueousammonium hydroxide was sonicated for 20 hours at 40-50° C. The mixturewas diluted with ethyl acetate and acidified to pH 1 with 5 N HCl. Theaqueous layer was extracted three times with ethyl acetate. The combinedorganic extracts were washed with saturated brine, dried over magnesiumsulfate, filtered, and concentrated. The residue was purified by columnchromatography on silica gel (elution with gradient hexanes/ethylacetate) to afford 80 mg (40%) of the9-[(1-naphthyl)methyl]-4-hydroxy-5-carbamoyl carbazole as a white solid.¹H NMR (DMSO-d6) δ10.55 (s, 1H), 8.8 (br s, 1H), 8.4 (br s, 1H), 8.35(d, 1H, J=8 Hz), 7.95 (d, 1H, J=8 Hz), 7.8 (d, 1H, J=8 Hz), 7.65 (m,4H), 7.45 (m, 2H), 7.25 (t, 1H, J=8 Hz), 7.15 (t, 1H, J=8 Hz), 6.9 (d,1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), and 6.2 (s, 2H). MS (ES) m/e 365, 367.

D. {9-[(1-Naphthyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester

40% Methanolic Triton B (0.2 mL, 0.26 mM) was added to a solution of the9-[(1-naphthyl)methyl]-4-hydroxy-5-carbamoyl carbazole (80 mg, 0.22 mM)in 7 mL DMF at room temperature. After 15 minutes, methyl bromoacetate(40 mg, 0.3 mM) was added and the resultant mixture stirred at roomtemperature for 3 hours. The mixture was diluted with ethyl acetate,washed twice with H₂O, and once with saturated brine, dried overmagnesium sulfate, filtered, and concentrated. The residue was purifiedby column chromatography on silica gel (elution with ethyl acetate) toafford 81 mg (85%) of the{9-[(1-naphthyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid, methylester as a white solid. ¹H NMR (CDCl₃) δ8.2 (d, 1H, J=8 Hz), 8.05 (d,1H, J=8 Hz), 7.85-7.0 (m, 11H), 6.65 (d, 1H, J=8 Hz), 6.3 (d, 1H, J=8Hz), 6.2 (s, 2H), 4.95 (s, 2H), and 3.8 (s, 3H). IR (KBr, cm⁻¹) 3364,1739, 1630, 1582, 1500, 1455, 1285, 1232, 1153, and 774. MS (FD) m/e438.

Elemental Analyses for C₂₇H₂₂N₂O₄: Calculated: C, 73.97; H, 5.02; N,6.39. Found: C, 71.66; H, 5.14; N, 5.96.

E. {9-[(1-Naphthyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt

A solution of the{9-[(1-naphthyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid, methylester (21 mg, 0.048 mM) and 0.05 mL (0.05 mM) of 1 N NaOH in 5 mL ofethanol was stirred for 20 hours at 25° C. The resultant whiteprecipitate was collected by filtration, washed with a small amount ofEtOH, then dried in vacuo to afford 17 mg (80%) of the{9-[(1-naphthyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid, sodiumsalt as a white powder. ¹H NMR (DMSO-d6) δ8.4 (d, 1H, J=8 Hz), 8.05 (d,1H, J=8 Hz), 7.8 (d, 1H, J=8 Hz), 7.75-7.2 (m, 8H), 7.1 (d, 1H, J=8 Hz),6.95 (d, 1H, J=8 Hz), 6.55 (d, 1H, J=8 Hz), 6.3 (d, 1H, J=8 Hz), 6.15(s, 2H), and 4.4 (s, 2H). IR (KBr, cm⁻¹) 1664, 1615, 1595, 1455, 1408,1324, 1275, and 775. MS (ES) m/e 423, 425.

Elemental Analyses for C₂₆H₁₉N₂O₄Na: Calculated: C, 69.96; H, 4.26; N,6.28. Found: C, 67.91; H, 4.24; N, 5.76.

EXAMPLE 33 Preparation of{9-[(2-cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt

A.9-[(2-Cyanophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

40% Methanolic Triton B (2.18 mL, 4.8 mM) was slowly added dropwise to asolution of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (973 mg,4.0 mM) in 10 mL of DMF at 25° C. After 10 minutes,a-bromo-o-tolunitrile (1.0 g, 5.0 mM) was added and the resultantmixture stirred at room temperature for 30 hours. The mixture wasdiluted with ethyl acetate, washed five times with H₂O, 1 N HCl, H₂O,sat NaHCO₃, H₂O, and saturated brine, dried over anhydrous magnesiumsulfate, filtered, concentrated. The residue was triturated with diethylether and methylene chloride, then dried in vacuo to afford 1.31 g (91%)of the9-[(2-cyanophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-oneas a tan solid. ¹H NMR (CDCl₃) δ7.75 (dd, 1H, J=1 and 8 Hz), 7.5-7.2 (m,5H), 6.6 (d, 1H, J=8 Hz), 5.55 (s, 2H), 4.05 (s, 3H), 2.85 (t, 2H, J=6Hz), 2.6 (t, 2H, J=6 Hz), and 2.25 (m, 2H). IR (KBr, cm⁻¹) 2222, 1711,and 1650. MS (ES) m/e 357, 359.

Elemental Analyses for C₂₂H₁₈N₂O₃: Calculated: C, 73.73; H, 5.06; N,7.82. Found: C, 73.62; H, 5.34; N, 7.59.

B. 9-[(2-Cyanophenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of the9-[(2-cyanophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(1.27 g, 3.5 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (892 mg,3.85 mM) in 25 mL of toluene was stirred at reflux for 7 hours. Themixture was purified directly by column chromatography on silica gel(elution with methylene chloride) to afford 305 mg (24%) of the9-[(2-cyanophenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole as ayellow solid. ¹H NMR (CDCl₃) δ10.35 (s, 1H), 8.0 (d, 1H, J=8 Hz), 7.75(d, 1H, J=8 Hz), 7.5-7.2 (m, 5H), 6.85 (m, 2H), 6.6 (d, 1H, J=8 Hz),5.75 (s, 2H), and 4.1 (s, 3H). IR (CHCl₃, cm⁻¹) 3025, 2223, and 1686. MS(ES) m/e 355, 357.

Elemental Analyses for C₂₂H₁₆N₂O₃: Calculated: C, 74.15; H, 4.53; N,7.86. Found: C, 72.99; H, 4.41; N, 7.65.

C. 9-[(2-Cyanophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the 9-[(2-cyanophenyl)methyl]-4-hydroxy-5-carbomethoxycarbazole (295 mg, 0.83 mM) in 5 mL THF and 20 mL concentrated aqueousammonium hydroxide was sonicated for 22 hours at 40-50° C. The mixturewas diluted with ethyl acetate and acidified to pH 1 with 5 N HCl. Theaqueous layer was extracted three times with ethyl acetate. The combinedorganic extracts were washed with H₂O and saturated brine, dried overmagnesium sulfate, filtered, and concentrated. The residue was purifiedby column chromatography on silica gel (elution with gradienthexanes/ethyl acetate) to afford 140 mg (49%) of the9-[(2-cyanophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole as a tansolid. ¹H NMR (DMSO-d6) δ10.5 (s, 1H), 8.8 (br s, 1H), 8.4 (br s, 1H),7.9 (d, 1H, J=8 Hz), 7.75 (d, 1H, J=8 Hz), 7.5-7.4 (m, 4H), 7.25 (t, 1H,J=8 Hz), 7.0 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), 6.4 (m, 1H), and 5.85(s, 2H). IR (KBr, cm⁻¹) 3448, 3356, 2225, 1628, and 1600. MS (ES) m/e340, 342.

Elemental Analyses for C₂₁H₁₅N₃O₂: Calculated: C, 73.89; H, 4.43; N,12.31. Found: C, 73.39; H, 4.56; N, 13.32.

D. {9-[(2-Cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester

40% Methanolic Triton B (0.24 mL, 0.53 mM) was added to a solution ofthe 9-[(2-cyanophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (140 mg,0.41 mM) in 5 mL DMF at room temperature. After 15 minutes, methylbromoacetate (130 mg, 0.82 mM) was added and the resultant mixturestirred at room temperature for 24 hours. The mixture was diluted withethyl acetate, washed four times with H₂O, 1 N HCl, H₂O, sat. NaHCO₃,and saturated brine, dried over magnesium sulfate, filtered, andconcentrated. The residue was purified by column chromatography onsilica gel (elution with gradient methylene chloride/ethyl acetate/THF)to afford 116 mg (68%) of the{9-[(2-cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester as a white solid. ¹H NMR (CDCl₃) δ7.75 (d, 1H, J=8 Hz),7.5-7.2 (m, 6H), 6.95 (d, 1H, J=8 Hz), 6.6 (d, 2H, J=8 Hz),), 6.3 (br s,1H), 6.1 (br s, 1H), 5.75 (s, 2H), 4.9 (s, 2H), and 3.8 (s, 3H). IR(KBr, cm⁻¹) 2228, 1732, and 1675. MS (ES) m/e 412, 414.

Elemental Analyses for C₂₄H₁₉N₃O₄: Calculated: C, 69.72; H, 4.63; N,10.16. Found: C, 70.00; H, 4.69; N, 10.32.

E. {9-[(2-Cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt

A suspension of the{9-[(2-cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester (110 mg, 0.266 mM) and 0.29 mL (0.29 mM) of 1 N NaOH in 5mL of ethanol was sonicated for 2 hours at 25° C. The resultant whiteprecipitate was collected by filtration, washed with small amounts ofEtOH, diethyl ether, and hexanes, then dried in vacuo to afford 107 mg(95%) of the{9-[(2-cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt as a white powder. ¹H NMR (DMSO-d6) δ7.9 (d, 1H, J=8 Hz),7.6 (br s, 1H), 7.5 (d, 1H, J=8 Hz), 7.45-7.4 (m, 3H), 7.35 (t, 1H, J=8Hz), 7.25 (t, 1H, J=8 Hz), 7.1 (d, 1H, J=8 Hz), 7.05 (d, 1H, J=8 Hz),6.55 (d, 1H, J=8 Hz), 6.4 (d, 1H, J=8 Hz), 5.8 (s, 2H), and 4.3 (s, 2H).IR (KBr, cm⁻¹) 2220, 1652, and 1613. MS (ES) m/e 398, 400.

Elemental Analyses for C₂₃H₁₆N₃O₄Na: Calculated: C, 65.56; H, 3.83; N,9.97. Found: C, 65.61; H, 3.71; N, 9.89.

EXAMPLE 34 Preparation of{9-[(3-cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid

A.9-[(3-Cyanophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

A suspension of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (973mg, 4.0 mM), a-bromo-m-tolunitrile (1.0 g, 4.9 mM), and potassiumcarbonate (553 mg, 4.0 mM) in 10 mL of DMF was stirred at 25° C. for 24hours. The mixture was diluted with ethyl acetate, washed five timeswith H₂O, 1 N HCl, H₂O, sat NaHCO₃, H₂O, and saturated brine, dried overanhydrous magnesium sulfate, filtered, concentrated. The residue wasdried in vacuo to afford 1.18 g (82%) of the9-[(3-cyanophenyl)methyl]-5-carbomethoxy -1,2-dihydrocarbazol-4(3H)-oneas a tan solid. ¹H NMR (CDCl₃) δ7.65-7.2 (m, 6H), 7.15 (d, 1H, J=8 Hz),5.4 (s, 2H), 4.05 (s, 3H), 2.85 (t, 2H, J=6 Hz), 2.6 (t, 2H, J=6 Hz),and 2.25 (m, 2H). IR (KBr, cm⁻¹) 2226, 1729, and 1646. MS (ES) m/e 357,359.

Elemental Analyses for C₂₂H₁₈N₂O₃: Calculated: C, 73.73; H, 5.06; N,7.82. Found: C, 70.18; H, 4.97; N, 7.07.

B. 9-[(3-Cyanophenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of the9-[(3-cyanophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(1.15 g, 3.2 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (815 mg,3.52 mM) in 25 mL of toluene was stirred at reflux for 2 hours. Themixture was purified directly by column chromatography on silica gel(elution with methylene chloride) to afford 120 mg (10%) of the9-[(3-cyanophenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole as ayellow solid. ¹H NMR (CDCl₃) δ10.35 (s, 1H), 8.0 (d, 1H, J=8 Hz),7.6-7.2 (m, 7H), 6.85 (m, 2H), 5.55 (s, 2H), and 4.1 (s, 3H). IR (KBr,cm⁻¹) 3063, 3025, 2234, and 1685. MS (ES) m/e 355, 357.

Elemental Analyses for C₂₂H₁₆N₂O₃: Calculated: C, 74.15; H, 4.53; N,7.86. Found: C, 73.36; H, 4.51; N, 8.06.

C. 9-[(3-Cyanophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the 9-[(3-cyanophenyl)methyl]-4-hydroxy-5-carbomethoxycarbazole (114 mg, 0.32 mM) in 5 mL THF and 20 mL concentrated aqueousammonium hydroxide was sonicated for 7 hours at 40-50° C. The mixturewas diluted with ethyl acetate and acidified to pH 1 with 5 N HCl. Theaqueous layer was extracted three times with ethyl acetate. The combinedorganic extracts were washed with H₂O and saturated brine, dried overmagnesium sulfate, filtered, and concentrated. The residue was purifiedby column chromatography on silica gel (elution with gradienthexanes/ethyl acetate) to afford 40 mg (49%) of the9-[(3-cyanophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole as a whitesolid. ¹H NMR (DMSO-d6) δ10.5 (s, 1H), 8.8 (br s, 1H), 8.4 (br s, 1H),7.8 (d, 1H, J=8 Hz), 7.7 (d, 1H, J=8 Hz), 7.6 (s, 1H), 7.5-7.4 (m, 3H),7.3 (t, 1H, J=8 Hz), 7.25 (d, 1H, J=8 Hz), 7.1 (d, 1H, J=8 Hz), 6.6 (d,1H, J=8 Hz), and 5.75 (s, 2H). IR (KBr, cm⁻¹) 3430, 3347, 2231, 1628,and 1601. MS (ES) m/e 340, 342.

Elemental Analyses for C₂₁H₁₅N₃O₂: Calculated: C, 73.89; H, 4.43; N,12.31. Found: C, 75.20; H, 4.80; N, 12.15.

D. {9-[(3-Cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,tert-butyl ester

40% Methanolic Triton B (0.06 mL, 0.13 mM) was added to a solution ofthe 9-[(3-cyanophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (34.1 mg,0.1 mM) in 5 mL DMF at room temperature. After 1 minute, tert-butylbromoacetate (40 mg, 0.2 mM) was added and the resultant mixture stirredat room temperature for 24 h. The mixture was diluted with ethyl.acetate, washed four times with H₂O, 1 N HCl, H₂O, sat. NaHCO₃, andsaturated brine, dried over magnesium sulfate, filtered, andconcentrated. The residue was triturated with hexane to afford 51 mg(100%) of the{9-[(3-cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,tert-butyl ester as a white solid. ¹H NMR (CDCl₃) δ7.55 (d, 1H, J=8 Hz),7.5-7.2 (m, 7H), 6.95 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), 6.3 (br s,1H), 6.1 (br s, 1H), 5.5 (s, 2H), 4.8 (s, 2H), and 1.5 (s, 9H). IR (KBr,cm⁻¹) 2228, 1748, and 1669. MS (ES) m/e 455, 456.

Elemental Analyses for C₂₇H₂₅N₃O₄: Calculated: C, 71.19; H, 5.53; N,9.22. Found: C, 70.24; H, 5.68; N, 8.96.

E. {9-[(3-Cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid

A solution of the{9-[(3-cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,tert-butyl ester (45 mg, 0.1 mM) ) in 3 mL of trifluoroacetic acid wasstirred at room temperature for 2 hours. The solvent was removed invacuo. The residue was triturated with ethyl ether-hexanes, then driedin vacuo to afford 41 mg (100%) of the{9-[(2-cyanophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid as atan powder. ¹H NMR (DMSO-d6) δ13.0 (br s, 1H), 7.6-7.3 (m, 10H), 7.1 (d,1H, J=8 Hz), 6.65 (d, 1H, J=8 Hz), 5.8 (s, 2H), and 4.8 (s, 2H). IR(KBr, cm⁻¹) 2226, 1733, and 1640. MS (ES) m/e 398, 400.

Elemental Analyses for C₂₃H₁₇N₃O₄: Calculated: C, 69.17; H, 4.29; N,10.52. Found: C, 66.96; H, 4.37; N, 10.03.

EXAMPLE 35 Preparation of{9-[(2-methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt

A.9-[(2-Methylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

A suspension of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (870mg, 3.58 mM), a-bromo-o-xylene (662 mg, 3.58 mM), and potassiumcarbonate (500 mg, 3.61 mM) in 20 mL DMF was stirred at room temperaturefor 20 hours. The mixture was diluted with ethyl acetate, washed withH₂O and saturated brine, dried over anhydrous magnesium sulfate,filtered, concentrated to afford 1.21 g (98%) of the9-[(2-methylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-oneas a dark oil. ¹H NMR (DMSO-d6) δ7.5-7.2 (m, 4H), 7.15 (t, 1H, J=8 Hz),7.0 (t, 1H, J=8 Hz), 6.15 (d, 1H, J=8 Hz), 5.55 (s, 2H), 3.85 (s, 3H),2.6 (m, 2H), 2.4 (m, 2H), 2.4 (s, 3H), and 2.1 (m, 2H). IR (CHCl₃, cm⁻¹)3010, 2952, 1724, 1671, 1653, 1604, 1460, 1444, 1290, 1174, and 1122. MS(ES) m/e 348.5.

Elemental Analyses for C₂₂H₂₁NO₃: Calculated: C, 76.08; H, 6.05; N,4.03. Found C, 73.33; H, 6.36; N, 4.30.

B. 9-[(2-Methylphenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of the9-[(2-methylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(1.2 g, 3.5 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (800 mg,3.6 mM) in 70 mL of toluene was stirred at 80-90° C. for 5 hours. Themixture was purified directly by column chromatography on silica gel(elution with methylene chloride) to afford 260 mg (22%) of the9-[(2-methylphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole as ayellow solid. ¹H NMR (DMSO-d6) δ10.25 (s, 1H), 7.5 (d, 1H, J=8 Hz), 7.4(t, 1H, J=8 Hz), 7.3-7.1 (m, 4H), 6.9 (m, 2H), 6.6 (d, 1H, J=8 Hz), 6.1(d, 1H, J=8 Hz), 5.65 (s, 2H), 3.8 (s, 3H), and 2.5 (s, 3H). IR (KBr,cm⁻¹) 3200, 1672, 1440, 1426, 1332, 1302, 1265, 1216, 1141, 761, 749,and 718. MS (ES) m/e 344, 346.

Elemental Analyses for C₂₂H₁₉NO₃: Calculated: C, 76.52; H, 5.51; N,4.06. Found: C, 76.44; H, 5.66; N, 3.94.

C. 9-[(2-Methylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the 9-[(2-methylphenyl)methyl]-4-hydroxy-5-carbomethoxycarbazole (260 mg, 0.75 mM) in 10 mL THF and 30 mL concentrated aqueousammonium hydroxide was sonicated for 5 hours at 40-50° C. The mixturewas diluted with ethyl acetate and acidified to pH 1 with 5 N HCl. Theaqueous layer was extracted three times with ethyl acetate. The combinedorganic extracts were washed with H₂O and saturated brine, dried overmagnesium sulfate, filtered, and concentrated. The residue was purifiedby column chromatography on silica gel (elution with gradienthexanes/ethyl acetate) to afford 90 mg (36%) of the9-[(2-methylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole as a tansolid. ¹H NMR (DMSO-d6) δ10.5 (s, 1H), 8.8 (br s, 1H), 8.4 (br s, 1H),7.7 (m, 1H), 7.5 (m, 2H), 7.3 (m, 2H), 7.1 (t, 1H, J=8 Hz), 6.95 (d, 1H,J=8 Hz), 6.85 (t, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), 5.95 (d, 1H, J=8Hz), 5.7 (s, 2H), and 2.5 (s, 3H). IR (KBr, cm⁻¹) 3451, 3191, 1627,1600, 1584, 1562, 1435, 1329, 1322, 1263, and 774. MS (ES) m/e 329, 331.

Elemental Analyses for C₂₁H₁₈N₂O₂: Calculated: C, 76.36; H, 5.45; N,8.48. Found: C, 75.66; H, 5.79; N, 8.07.

D. {9-[(2-Methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester

40% Methanolic Triton B (0.45 mL, 0.99 mM) was added to a solution ofthe 9-[(2-methylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (80 mg,0.24 mM) in 8 mL DMF at room temperature. After 3 minutes, methylbromoacetate (115 mg, 0.72 mM) was added and the resultant mixturestirred at room temperature for 48 hours. The mixture was diluted withethyl acetate, washed with H₂O, 1 N HCl, H₂O, and saturated brine, driedover magnesium sulfate, filtered, and concentrated. The residue waspurified by column chromatography on silica gel (elution with ethylacetate) to afford 80 mg (82%) of the{9-[(2-methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester as a white solid. ¹H NMR (DMSO-d6) δ7.56 (br s, 1H),7.5-7.1 (m, 9H), 6.9 (t, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), 5.65 (s, 2H),4.9 (s, 2H), 3.8 (s, 3H), and 2.5 (s, 3H). IR (KBr, cm⁻¹) 3367, 3153,1760, 1740, 1672, 1644, 1619, 1591, 1578, 1498, 1456, 1425, 1327, 1200,1153, 1109, 1100, and 777. MS (FD) m/e 402.

Elemental Analyses for C₂₄H₂₂N₂O₄: Calculated: C, 71.64; H, 5.47; N,6.96. Found: C, 71.51; H, 5.56; N, 6.67.

E. {9-[(2-Methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt

A suspension of the{9-[(2-methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester (15.5 mg, 0.039 mM) and 0.04 mL (0.04 mM) of 1 N NaOH in 5mL of ethanol was stirred for 24 hours at 25° C. The resultant whiteprecipitate was collected by filtration, washed with a small amount ofEtOH, then dried in vacuo to afford 10 mg (63%) of the{9-[(2-methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt as a whitw powder. ¹H NMR (DMSO-d6) δ7.55 (br s, 1H),7.5-7.0 (m, 7H), 6.9 (d, 1H, J=8 Hz), 6.85 (t, 1H, J=8 Hz), 6.6 (d, 1H,J=8 Hz), 6.2 (d, 1H, J=8 Hz), 5.6 (s, 2H), 4.35 (s, 2H), and 2.5 (s,3H). IR (KBr, cm⁻¹) 3390, 1656, 1613, 1595, 1573, 1498, 1455, 1408,1325, 1332, and 719. MS (ES) m/e 387, 389.

Elemental Analyses for C₂₃H₁₉N₂O₄: Calculated: C, 67.32; H, 4.63; N,6.83. Found: C, 64.72; H, 4.44; N, 6.40.

EXAMPLE 36 Preparation of{9-[(3-methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt

A.9-[(3-Methylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

A suspension of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (870mg, 3.58 mM), a-bromo-m-xylene (662 mg, 3.58 mM), and potassiumcarbonate (500 mg, 3.61 mM) in 20 mL DMF was stirred at room temperaturefor 16 hours. The mixture was diluted with ethyl acetate, washed withH₂O and saturated brine, dried over anhydrous magnesium sulfate,filtered, concentrated to afford 1.18 g (95%) of the9-[(3-methylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-oneas a dark oil. ¹H NMR (DMSO-d6) δ7.65 (dd, 1H, J=1 and 8 Hz), 7.3-7.1(m, 3H), 7.05 (d, 1H, J=8 Hz), 7.0 (s, 1H), 6.85 (d, 1H, J=8 Hz), 5.5(s, 2H), 3.8 (s, 3H), 3.0 (m, 2H), 2.45 (m, 2H), 2.3 (s, 3H), and 2.1(m, 2H). IR (CHCl₃, cm⁻¹) 3010, 2953, 1724, 1652, 1605, 1465, 1442,1288, 1174, and 1119. MS (ES) m/e 348.5.

Elemental Analyses for C₂₂H₂₁NO₃: Calculated: C, 76.08; H, 6.05; N,4.03. Found: C, 74.53; H, 6.03; N, 3.68.

B. 9-[(3-Methylphenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of the9-[(3-methylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(1.18 g, 3.4 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (800 mg,3.6 mM) in 70 mL of toluene was stirred at 80-90° C. for 6 hours. Themixture was purified directly by column chromatography on silica gel(elution with methylene chloride) to afford 300 mg (26%) of the9-[(3-methylphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole as ayellow solid. ¹H NMR (DMSO-d6) δ10.2 (s, 1H), 7.65 (d, 1H, J=8 Hz), 7.35(t, 1H, J=8 Hz), 7.25 (t, 1H, J=8 Hz), 7.2-7.0 (m, 4H), 6.9 (m, 2H), 6.6(d, 1H, J=8 Hz), 5.6 (s, 2H), 3.85 (s, 3H), and 2.2 (s, 3H). IR (KBr,cm⁻¹) 3200, 1673, 1596, 1440, 1426, 1394, 1265, 1216, 1152, 750, 711,and 694. MS (ES) m/e 344, 346.

Elemental Analyses for C₂₂H₁₉NO₃: Calculated: C, 76.52; H, 5.51; N,4.06. Found: C, 76.22; H, 5.55; N, 3.97.

C. 9-[(3-Methylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the 9-[(3-methylphenyl)methyl]-4-hydroxy-5-carbomethoxycarbazole (300 mg, 0.87 mM) in 10 mL THF and 30 mL concentrated aqueousammonium hydroxide was sonicated for 5 hours at 40-50° C. The mixturewas diluted with ethyl acetate and acidified to pH 1 with 5 N HCl. Theaqueous layer was extracted three times with ethyl acetate. The combinedorganic extracts were washed with H₂O and saturated brine, dried overmagnesium sulfate, filtered, and concentrated. The residue was purifiedby column chromatography on silica gel (elution with gradienthexanes/ethyl acetate) to afford 114 mg (40%) of the9-[(3-methylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole as anoff-white solid. ¹H NMR (DMSO-d6) δ10.5 (s, 1H), 8.8 (br s, 1H), 8.4 (brs, 1H), 7.8 (dd, 1H, J=1 and 8 Hz), 7.4 (m, 2H), 7.3 (t, 1H, J=8 Hz),7.15-7.0 (m, 3H), 6.85 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), 5.95 (d,1H, J=8 Hz), 5.65 (s, 2H), and 2.25 (s, 3H). IR (KBr, cm⁻¹) 3434, 3203,1629, 1599, 1579, 1552, 1443, 1330, 1262, 1214, and 776. MS (ES) m/e329, 331.

Elemental Analyses for C₂₁H₁₈N₂O₂: Calculated: C, 76.36; H, 5.45; N,8.48. Found: C, 77.56; H, 5.67; N, 8.26.

D. {9-[(3-Methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester

40% Methanolic Triton B (0.45 mL, 0.99 mM) was added to a solution ofthe 9-[(3-methylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (100 mg,0.30 mM) in 8 mL DMF at room temperature. After 3 minutes, methylbromoacetate (115 mg, 0.72 mM) was added and the resultant mixturestirred at room temperature for 24 hours. The mixture was diluted withethyl acetate, washed with H₂O, and saturated brine, dried overmagnesium sulfate, filtered, and concentrated. The residue was purifiedby column chromatography on silica gel (elution with ethyl acetate) toafford 80 mg (66%) of the{9-[(3-methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester as a white solid. ¹H NMR (DMSO-d6) δ7.6 (d, 1H, J=8 Hz),7.55 (br s, 1H), 7.45-7.0 (m, 8H), 6.9 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8Hz), 5.65 (s, 2H), 4.9 (s, 2H), 3.75 (s, 3H), and 2.2 (s, 3H). IR (KBr,cm⁻¹) 3367, 3157, 1760, 1642, 1589, 1499, 1455, 1424, 1328, 1216, 1151,1102, 772, and 714. MS (FD) m/e 402.

Elemental Analyses for C₂₄H₂₂N₂O₄: Calculated: C, 71.64; H, 5.47; N,6.96. Found: C, 71.01; H, 5.60; N, 6.66.

E. {9-[(3-Methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt

A suspension of the{9-[(3-methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester (15.8 mg, 0.039 mM) and 0.04 mL (0.04 mM) of 1 N NaOH in 5mL of ethanol was stirred for 24 h at 25° C. The resultant whiteprecipitate was collected by filtration, washed with a small amount ofEtOH, then dried in vacuo to afford 10 mg (62%) of the{9-[(3-methylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt as a white powder. ¹H NMR (DMSO-d6) δ7.55 (d, 1H, J=8 Hz),7.5-7.0 (m, 9H), 6.85 (d, 1H, J=8 Hz), 6.55 (d, 1H, J=8 Hz), 5.6 (s,2H), 4.35 (s, 2H), and 2.2 (s, 3H). IR (KBr, cm⁻¹) 3390, 1656, 1613,1595, 1573, 1498, 1455, 1408, 1325, 1332, and 719. MS (ES) m/e 387, 389.

Elemental Analyses for C₂₃H₁₉N₂O₄Na: Calculated: C, 67.32; H, 4.63; N,6.83. Found: C, 61.20; H, 4.64; N, 6.06.

EXAMPLE 37 Preparation of{9-[(3,5-dimethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt

A.9-[(3,5-Dimethylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

A suspension of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (850mg, 3.5 mM), 3,5-dimethylbenzyl bromide (765 mg, 3.8 mM), and potassiumcarbonate (500 mg, 3.61 mM) in 25 mL DMF was stirred at room temperaturefor 19 hours. The mixture was diluted with ethyl acetate, washed withH₂O and saturated brine, dried over anhydrous magnesium sulfate,filtered, concentrated. The residue was purified by columnchromatography on silica gel (elution with ethyl acetate) to afford 0.84g (67%) of the9-[(3,5-dimethylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-oneas a foam. ¹H NMR (DMSO-d6) δ7.7 (dd, 1H, J=1 and 8 Hz), 7.3-7.2 (m,2H), 6.9 (s, 1H), 6.75 (s, 2H), 5.45 (s, 2H), 3.8 (s, 3H), 3.0 (m, 2H),2.45 (m, 2H), 2.2 (s, 6H), and 2.1 (m, 2H). IR (KBr, cm⁻¹) 1726, 1653,1602, 1465, 1442, 1282, 1172, and 1116. MS (ES) m/e 362.

Elemental Analyses for C₂₃H₂₃NO₃: Calculated: C, 76.45; H, 6.37; N,3.88. Found: C, 76.82; H, 6.54; N, 3.91.

B. 9-[(3,5-Dimethylphenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of the9-[(3,5-dimethylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(0.8 g, 2.2 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (550 mg,2.43 mM) in 70 mL of toluene was stirred at 80-90° C. for 5 hours. Themixture was purified directly by column chromatography on silica gel(elution with methylene chloride) to afford 234 mg (29%) of the9-[(3,5-dimethylphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole as ayellow solid. ¹H NMR (DMSO-d6) δ10.2 (s, 1H), 7.65 (d, 1H, J=8 Hz), 7.35(t, =H, J=8 Hz), 7.25 (t, 1H, J=8 Hz), 7.15 (d, 1H, J=8 Hz), 7.05 (d,1H, J=8 Hz), 6.9 (s, 1H), 6.7 (s, 2H), 6.6 (d, 1H, J=8 Hz), 5.6 (s, 2H),3.85 (s, 3H), and 2.2 (s, 6H). IR (KBr, cm⁻¹) 3016, 1675, 1598, 1441,1426, 1394, 1288, 1270, 1221, 1152, 754, and 713. MS (ES) m/e 358, 360.

Elemental Analyses for C₂₃H₂₁NO₃: Calculated: C, 76.88; H, 5.85; N,3.90. Found: C, 76.94; H, 6.00; N, 3.93.

C. 9-[(3,5-Dimethylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the9-[(3,5-dimethylphenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole (200mg, 0.55 mM) in 10 mL THF and 30 mL concentrated aqueous ammoniumhydroxide was sonicated for 4 days at 40-50° C. The mixture was dilutedwith ethyl acetate and acidified to pH 2.5 with 5 N HCl. The aqueouslayer was extracted three times with ethyl acetate. The combined organicextracts were washed with saturated brine, dried over magnesium sulfate,filtered, and concentrated. The residue was purified by columnchromatography on silica gel (elution with gradient hexanes/ethylacetate) to afford 90 mg (47%) of the9-[(3,5-dimethylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole as anoff-white solid. ¹H NMR (DMSO-d6) δ10.5 (s, 1H), 8.6 (s, 1H), 8.4 (s,1H), 7.75 (d, 1H, J=8 Hz), 7.45 (m, 2H), 7.3 (t, 1H, J=8 Hz), 7.1 (d,1H, J=8 Hz), 6.85 (s, 1H), 6.7 (s, 2H), 6.6 (d, 1H, J=8 Hz), 5.6 (s,2H), and 2.2 (s, 6H). IR (KBr, cm⁻¹) 3417, 3198, 3113, 3063, 1631, 1601,1562, 1438, 1332, 1263, 1217, 781, and 773. MS (ES) m/e 343, 345.

Elemental Analyses for C₂₂H₂₀N₂O₂: Calculated: C, 76.74; H, 5.81; N,8.14. Found: C, 76.97; H, 5.94; N, 7.95.

D. {9-[(3,5-Dimethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester

40% Methanolic Triton B (0.13 mL, 0.28 mM) was added to a solution ofthe 9-[(3,5-dimethylphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (80mg, 0.23 mM) in 8 mL DMF at room temperature. After 3 minutes, methylbromoacetate (43 mg, 0.28 mM) was added and the resultant mixturestirred at room temperature for 17 hours. The mixture was diluted withethyl acetate, washed with H₂O, and saturated brine, dried overmagnesium sulfate, filtered, and concentrated. The residue was purifiedby column chromatography on silica gel (elution with ethyl acetate) toafford 70 mg (72%) of the{9-[(3,5-dimethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester as a white solid. ¹H NMR (DMSO-d6) δ7.6 (d, 1H, J=8 Hz),7.55 (br s, 1H), 7.45-7.3 (m, 2H), 7.25 (d, 1H, J=8 Hz), 7.2 (br s, 1H),7.1 (d, 1H, J=8 Hz), 6.9 (s, 1H), 6.8 (s, 2H), 6.6 (d, 1H, J=8 Hz), 5.65(s, 2H), 4.9 (s, 2H), 3.75 (s, 3H), and 2.2 (s, 6H). IR (KBr, cm⁻¹)3362, 3173, 1758, 1638, 1583, 1500, 1454, 1434, 1330, 1215, 1151, 1106,772, 715, and 706. MS (FD) m/e 417.

Elemental Analyses for C₂₅H₂₄N₂O₄: Calculated: C, 72.12; H, 5.76; N,6.73. Found: C, 71.80; H, 5.60; N, 6.73.

E. {9-[(3,5-Dimethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, sodium salt

A suspension of the{9-[(3,5-dimethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester (18 mg, 0.043 mM) and 0.043 mL (0.043 mM) of 1 N NaOH in 5mL of ethanol was stirred for 42 hours at 25° C. The resultant whiteprecipitate was collected by filtration, washed with a small amount ofEtOH, then dried in vacuo to afford 12 mg (67%) of the{9-[(3,5-dimethylphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt as a white powder. ¹H NMR (DMSO-d6) δ7.6 (d, 1H, J=8 Hz),7.5-7.3 (m, 4H), 7.1 (m, 2H), 6.9 (s, 1H), 6.8 (s, 2H), 6.6 (d, 1H, J=8Hz), 5.65 (s, 2H), 4.35 (s, 2H), and 2.2 (s, 6H). IR (KBr, cm⁻¹) 3385,1663, 1616, 1575, 1498, 1456, 1412, and 1330. MS (ES) m/e 401, 403.

Elemental Analyses for C₂₄H₂₁N₂O₄Na: Calculated: C, 67.92; H, 4.95; N,6.60. Found: C, 66.53; H, 5.06; N, 6.37.

EXAMPLE 38 Preparation of{9-[(3-iodophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt

A. 9-[(3-Iodophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

A suspension of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (680mg, 3.5 mM), 3-iodobenzyl bromide (1.2 g, 4.7 mM), and potassiumcarbonate (500 mg, 3.61 mM) in 20 mL DMF was stirred at room temperaturefor 18 hours. The mixture was diluted with ethyl acetate, washed withH₂O and saturated brine, dried over anhydrous magnesium sulfate,filtered, concentrated. The residue was purified trituration withmethylene chloride-diethyl ether) to afford 0.70 g (55%) of the9-[(3-iodophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one asa white solid. ¹H NMR (DMSO-d6) δ7.7-7.6 (m, 3H), 7.2 (m, 2H), 7.1 (t,1H, J=8 Hz), 6.95 (d, 1H, J=8Hz), 5.6 (s, 2H), 3.8 (s, 3H), 3.0 (t, 2H,J=6 Hz), 2.5 (t, 2H, J=6 Hz), and 2.2 (m, 2H). IR (KBr, cm⁻¹) 1732,1639, 1441, 1421, 1273, 1117, and 763. MS (ES) m/e 458, 460.

Elemental Analyses for C₂₁H₁₈NO₃I: Calculated: C, 54.90; H, 3.92; N,3.05. Found: C, 54.92; H, 3.98; N, 2.97.

B. 9-[(3-Iodophenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of the9-[(3-iodophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(700 mg, 1.52 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (380 mg,1.67 mM) in 70 mL of toluene was stirred between 70-80° C. for 5 hours.The mixture was purified directly by column chromatography on silica gel(elution with methylene chloride) to afford 220 mg (31%) of the9-[(3-iodophenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole as a yellowfoam. ¹H NMR (DMSO-d6) δ10.25 (s, 1H), 7.7 (d, 1H, J=8 Hz), 7.6 (m, 2H),7.4 (t, 1H, J=8 Hz), 7.25 (t, 1H, J=8 Hz), 7.2 (d, 1H, J=8 Hz), 7.1 (m,3H), 6.65 (d, 1H, J=8 Hz), 5.65 (s, 2H), and 3.8 (s, 3H). IR (KBr, cm⁻¹)3377 (br), 3028, 1711, 1672, 1621, 1580, 1565, 1495, 1459, 1439, 1423,1332, 1287, 1267, 1135, 773, 752, 712, and 688. MS (ES) m/e 456, 458.

Elemental Analyses for C₂₁H₁₆NO₃I: Calculated: C, 55.14; H, 3.50; N,3.06. Found: C, 56.18; H, 3.87; N, 3.32.

C. 9-[(3-Iodophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the 9-[(3-iodophenyl)methyl]-4-hydroxy-5-carbomethoxycarbazole (170 mg, 0.37 mM) in 10 mL THF and 30 mL concentrated aqueousammonium hydroxide was stirred vigorously at room temperature for 120hours. The mixture was diluted with ethyl acetate and acidified to pH 2with 5 N HCl. The aqueous layer was extracted twice with ethyl acetate.The combined organic extracts were washed with saturated brine, driedover magnesium sulfate, filtered, and concentrated. The residue waspurified by column chromatography on silica gel (elution with gradientmethylene chloride/ethyl acetate) to afford 61 mg (37%) of the9-[(3-iodophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole as a whitesolid. ¹H NMR (DMSO-d6) δ10.5 (s, 1H), 8.8 (br s, 1H), 8.4 (br s, 1H),7.8 (dd, 1H, J=1 and 8 Hz), 7.6-7.4 (m, 4H), 7.3 (t, 1H, J=8 Hz),7.1-6.9 (m, 3H), 6.6 (d, 1H, J=8 Hz), and 5.7 (s, 2H). IR (CHCl₃, cm⁻¹)3423, 3201 (br), 1630, 1600, 1579, 1564, 1445, 1330, 1261, and 775. MS(ES) m/e 441, 443.

Elemental Analyses for C₂₀H₁₅N₂O₂I: Calculated: C, 54.30; H, 3.39; N,6.33. Found: C, 54.92; H, 3.81; N, 6.08.

D. {9-[(3-Iodophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester

40% Methanolic Triton B (0.07 mL, 0.15 mM) was added to a solution ofthe 9-[(3-iodophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (60 mg,0.13 mM) in 8 mL DMF at room temperature. After 3 minutes, methylbromoacetate (30 mg, 0.19 mM) was added and the resultant mixturestirred at room temperature for 17 hours. The mixture was diluted withethyl acetate, washed with H₂O and saturated brine, dried over magnesiumsulfate, filtered, and concentrated. The residue was purified by columnchromatography on silica gel (elution with ethyl acetate) to afford 60mg (86%) of the{9-[(3-iodophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester as a white solid. ¹H NMR (DMSO-d6) δ7.6-7.0 (m, 11H), 6.6(d, 1H, J=8 Hz), 5.7 (s, 2H), 4.9 (s, 2H), and 3.75 (s, 3H). IR (KBr,cm⁻¹) 3500, 3350, 1727, 1642, 1291, 1236, and 772. MS (ES) m/e 515.

Elemental Analyses for C₂₃H₁₉N₂O₄I: Calculated: C, 53.70; H, 3.70; N,5.45. Found: C, 53.92; H, 3.72; N, 5.32.

E. {9-[(3-Iodophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid

A suspension of the{9-[(3-iodophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester (15 mg, 0.03 mM) and 0.03 mL (0.03 mM) of 1 N NaOH in 5 mLof ethanol was stirred for 43 hours at 25° C., then cooled in anice-bath. The resultant white precipitate was collected by filtration,washed with a small amount of EtOH, then dried in vacuo to afford 6.5 mg(43%) of the{9-[(3-iodophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt as a white powder. ¹H NMR (DMSO-d6) δ7.6-7.0 (m, 11H), 6.6(d, 1H, J=8 Hz), 5.7 (s, 2H), and 4.35 (s, 2H). IR (KBr, cm⁻¹) 3456,3416, 3335, 1735, 1638, 1617, 1580, 1499, 1452, 1431, 1431, 1329, 1255,1157, 772, 764, and 717. MS (ES) m/e 407, 409, 411.

Elemental Analyses for C₂₂H₁₆N₂O₄INa, Calculated: C, 50.57; H, 3.07; N,5.36. Found: C, 49.57; H, 2.93; N, 5.06.

EXAMPLE 39 Preparation of{9-[(2-Chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid

A.9-[(2-Chlorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

40% Methanolic Triton B (2.42 mL, 5.3 mM) was slowly added dropwise to asolution of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (873.7 mg,3.59 mM) in 10 mL of DMF at 25° C. After 5 minutes, 2-chlorobenzylbromide (1.11 g, 5.39 mM) was added and the resultant mixture stirred atroom temperature for 72 hours. The mixture was diluted with ethylacetate, washed five times with H₂O, once with saturated brine, driedover anhydrousmagnesium sulfate, filtered, and concentrated. The residuewas purified by crystallization from ethyl acetate to afford 706.3 mg(53%) of the9-[(2-chlorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-oneas a yellow solid. ¹H NMR (DMSO-d6) δ7.6 (m, 2H), 7.4-7.1 (m, 4H), 6.5(d, 1H, J=8 Hz), 5.6 (s, 2H), 3.8 (s, 3H), 2.9 (t, 2H, J=6 Hz), 2.4 (t,2H, J=6 Hz), and 2.1 (m, 2H). IR (CDCl₃, cm⁻¹) 3050, 2950, 1725, 1655,1462, 1446, 1435, 1288 and 1120. MS (ES) m/e 368, 370.

Elemental Analyses for C₂₁H₁₈NO₃Cl: Calculated: C, 68.57; H, 4.93; N,3.81. Found: C, 68.52; H, 5.18; N, 3.67.

B. 9-[(2-Chlorophenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of the9-[(2-chlorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(692.2 mg, 1.88 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (529mg, 2.32 mM) in 35 mL of toluene was stirred between 70-80° C. for 6hours. The mixture was purified directly by column chromatography onsilica gel (elution with methylene chloride) to afford 245 mg (35%) ofthe 9-[(2-chlorophenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole as agreenish solid. ¹H NMR (DMSO-d6) δ10.3 (s, 1H), 7.6 (t, 2H, J=8 Hz), 7.4(t, 1H, J=8 Hz), 7.3-7.1 (m, 4H), 6.9 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8Hz), 6.3 (d, 1H, J=8 Hz), 5.65 (s, 2H), and 3.85 (s, 3H). IR (CHCl₃,cm⁻¹) 3200 (br), 1686, 1598, 1442, 1428, 1332, 1285, 1267, and 1141. MS(ES) m/e 364, 366, 368.

Elemental Analyses for C₂₁H₁₆NO₃Cl: Calculated: C, 68.95; H, 4.41; N,3.83. Found: C, 67.88; H, 4.29; N, 3.67.

C. 9-[(2-Chlorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the 9-[(2-chlorophenyl)methyl]-4-hydroxy-5-carbomethoxycarbazole (238 mg, 0.43 mM) in 20 mL THF and 25 mL concentrated aqueousammonium hydroxide was sonicated for 20 hours at 40-50° C. The mixturewas diluted with ethyl acetate and acidified to pH 1 with 5 N HCl. Theaqueous layer was extracted twice with ethyl acetate. The combinedorganic extracts were washed with saturated brine, dried over magnesiumsulfate, filtered, and concentrated. The residue was purified by columnchromatography on silica gel (elution with gradient methylenechloride/ethyl acetate) to afford 86.9 mg (38%) of the9-[(2-chlorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole as a whitesolid. ¹H NMR (DMSO-d6) δ10.5 (s, 1H), 8.8 (br s, 1H), 8.4 (br s, 1H),7.7 (m, 1H), 7.55 (d, 1H, J=8 Hz), 7.45 (m, 2H), 7.3 (m, 2H), 7.15 (t,1H, J=8 Hz), 6.95 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), 6.2 (d, 1H, J=8Hz), 5.75 (s, 2H). IR (CHCl₃, cm⁻¹) 3500, 3400, 3200 (br), 1649, 1597,1585, 1446, 1431, 1331, and 1269. MS (ES) m/e 349, 351, 353.

Elemental Analyses for C₂₀H₁₅N₂O₂Cl: Calculated: C, 68.48; H, 4.31; N,7.99. Found: C, 68.05; H, 4.33; N, 7.19.

D. {9-[(2-Chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,tert-butyl ester

40% Methanolic Triton B (0.15 mL, 0.34 mM) was added to a solution ofthe 9-[(2-chlorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (80 mg,0.23 mM) in 5 mL DMF at room temperature. After 3 minutes, t-butylbromoacetate (182 mg, 0.91 mM) was added and the resultant mixturestirred at room temperature for 72 hours. The mixture was diluted withethyl acetate, washed five times with H₂O, and saturated brine, driedover magnesium sulfate, filtered, and concentrated. The residue waspurified by column chromatography on silica gel (elution with ethylacetate) to afford 57 mg (53%) of the{9-[(2-chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,tert-butyl ester as a white solid. ¹H NMR (DMSO-d6) δ7.6 (d, 1H, J=8Hz), 7.5-6.9 (m, 9H), 6.55 (d, 1H, J=8 Hz), 6.35 (d, 1H, J=8 Hz), 5.7(s, 2H), 4.75 (s, 2H), and 1.45 (s, 9H). IR (KBr, cm⁻¹) 1753 and 1678.MS (FD) m/e 464.

Elemental Analyses for C₂₆H₂₅N₂O₄Cl: Calculated: C, 67.17; H, 5.42; N,6.03. Found: C, 64.02; H, 5.33; N, 5.77.

E. {9-[(2-Chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid

A solution of the{9-[(2-chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,tert-butyl ester (46 mg, 0.1 mM) in 3 mL of trifluoroacetic acid wasstirred at room temperature for 2 hours. The solvent was removed invacuo. The residue was triturated with diethyl ether/hexanes, then driedin vacuo to afford 40 mg (98%) of the{9-[(2-chlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid as awhite powder. ¹H NMR (DMSO-d6) δ12.9 (br s, 1H), 7.55 (s, 1H), 7.5 (d,1H, J=8 Hz), 7.45 (s, 1H), 7.4-7.3 (m, 3H), 7.25 (t, 1H, J=8 Hz),7.1-7.0 (m, 3H), 6.6 (d, 1H, J=8 Hz), 6.3 (d, 1H, J=8 Hz), 5.7 (s, 2H),and 4.8 (s, 2H). IR (KBr, cm⁻¹) 3430, 1735, and 1635. MS (ES) m/e 407,409.

Elemental Analyses for C₂₂H₁₇N₂O₄Cl: Calculated: C, 64.63; H, 4.19; N,6.85. Found: C, 64.60; H, 4.08; N, 6.70.

EXAMPLE 40 Preparation of{9-[(2,3-difluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt

A.9-[(2,3-Difluorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

A suspension of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (973mg, 4.0 mM), a-bromo-2,3-difluorotoluene (1.01 g, 4.8 mM), and potassiumcarbonate (553 mg, 4.0 mM) in 10 mL DMF was stirred at room temperaturefor 73 hours. The mixture was diluted with ethyl acetate, washed withH₂O, 1 N HCl, H₂O, saturated NaHCO₃, H₂O, and saturated brine, driedover anhydrous magnesium sulfate, filtered, concentrated. The residuewas purified by column chromatography on silica gel (elution withmethylene chloride/ethyl acetate) to afford 1.04 g (70%) of the9-[2,3-difluorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-oneas a tan solid. ¹H NMR (CDCl₃) δ7.4 (d, 1H, J=8 Hz), 7.35 (d, 1H, J=8Hz), 7.15-6.9 (m, 5H), 6.35 (t, 1H, J=8 Hz), 5.4 (s, 2H), 4.05 (s, 3H),2.9 (t, 2H, J=6 Hz), 2.6 (t, 2H, J=6 Hz), and 2.25 (m, 2H). IR (KBr,cm⁻¹) 1719 and 1650. MS (ES) m/e 368, 370.

Elemental Analyses for C₂₁H₁₇NO₃F₂: Calculated: C, 68.29; H, 4.64; N,3.79. Found: C, 68.50; H, 4.62; N, 3.94.

B. 9-[(2,3-Difluorophenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of the9-[(2,3-difluorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(490 mg, 1.32 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (336 mg,1.45 mM) in 70 mL of toluene was stirred at 80-90° C. for 2.25 hours.The mixture was purified directly by column chromatography on silica gel(elution with methylene chloride) to afford 165 mg (34%) of the9-[(2,3-difluorophenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole as ayellow solid. ¹H NMR (CDCl₃) δ10.25 (s, 1H), 8.0 (d, 1H, J=8 Hz), 7.6(d, 1H, J=8 Hz), 7.5-7.4 (m, 2H), 7.05 (m, 1H), 6.9 (d, 1H, J=8 Hz),6.85 (d, 1H, J=8 Hz), 6.8 (m, 1H), 6.35 (t, 1H, J=8 Hz), 5.6 (s, 2H),and 4.1 (s, 3H). IR (KBr, cm⁻¹) 3025 and 1684. MS (ES) m/e 366, 368.

Elemental Analyses for C₂₁H₁₅NO₃F₂: Calculated: C, 68.66; H, 4.12; N,3.81. Found: C, 69.54; H, 4.44; N, 3.81.

C. 9-[(2,3-Difluorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the9-[(2,3-difluorophenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole (514mg, 1.4 mM) in 5 mL THF and 20 mL concentrated aqueous ammoniumhydroxide was stirred at room temperature for 94 hours. The mixture wasdiluted with ethyl acetate and acidified to pH 1 with 5 N HCl. Theaqueous layer was extracted three times with ethyl acetate. The combinedorganic extracts were washed with H₂O and saturated brine, dried overmagnesium sulfate, filtered, and concentrated. The residue was purifiedby column chromatography on silica gel (elution with gradienthexanes/ethyl acetate) to afford 320 mg (65%) of the9-[(2,3-difluorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole as ayellow solid. ¹H NMR (DMSO-d6) δ10.45 (s, 1H), 8.8 (br s, 1H), 8.4 (brs, 1H), 7.8 (d, 1H, J=8 Hz), 7.5-7.2 (m, 4H), 7.05 (d, 1H, J=8 Hz), 6.95(m, 1H), 6.6 (d, 1H, J=8 Hz), 6.35 (t, 1H, J=8 Hz), and 5.9 (s, 2H). IR(KBr, cm⁻¹) 3350, 3125, 1628, 1598, and 1583. MS (ES) m/e 351, 353.

Elemental Analyses for C₂₀H₁₄N₂O₂F₂: Calculated: C, 68.18; H, 4.01; N,7.95. Found: C, 68.15; H, 4.23; N, 8.01.

D. {9-[(2,3-Difluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester

40% Methanolic Triton B (0.51 mL, 1.12 mM) was added to a solution ofthe 9-[(2,3-difluorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (303mg, 0.86 mM) in 5 mL DMF at room temperature. After 15 minutes, methylbromoacetate (270 mg, 1.72 mM) was added and the resultant mixturestirred at room temperature for 18 hours. The mixture was diluted withethyl acetate, washed with H₂O, 1 N HCl, H₂O, and saturated brine, driedover magnesium sulfate, filtered, and concentrated. The residue waspurified by column chromatography on silica gel (elution with ethylacetate) to afford 295 mg (80%) of the{9-[(2,3-difluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester as a white solid. ¹H NMR (CDCl₃) δ7.5-7.3 (m, 5H), 7.05 (d,1H, J=8 Hz), 6.8 (m, 1H), 6.6 (d, 1H, J=8 Hz), 6.4 (t, 1H, J=8 Hz), 6.2(br s, 1H), 6.0 (br s, 1H), 5.6 (s, 2H), 4.9 (s, 2H), and 3.8 (s, 3H).IR (KBr, cm⁻¹) 3432, 3180, 1774, 1766, and 1674. MS (ES) m/e 425.

Elemental Analyses for C₂₃H₁₈N₂O₄F₂: Calculated: C, 65.09; H, 4.28; N,6.60. Found: C, 64.11; H, 4.12; N, 6.32.

E. {9-[(2,3-Difluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, sodium salt

A suspension of the{9-[(2,3-difluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester (85 mg, 0.2 mM) and 0.22 mL (0.22 mM) of 1 N NaOH in 5 mLof ethanol was stirred for 18 hours at 25° C. A small volume of diethylether/hexanes was added, then cooled in the refrigerator. The resultantwhite precipitate was collected by filtration, washed with a smallamount of EtOH/diethyl ether/hexanes, then dried in vacuo to afford 77mg (89%) of the{9-[(2,3-difluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt as a white powder. ¹H NMR (DMSO-d6) δ7.7-7.2 (m, 6H),7.2-7.0 (m, 3H), 6.6 (d, 1H, J=8 Hz), 6.45 (t, 1H, J=8 Hz), 5.7 (s, 2H),and 4.35 (s, 2H). IR (KBr, cm⁻¹) 3467, 3390, 1662, and 1616. MS (ES) m/e409, 411, 433.

Elemental Analyses for C₂₂H₁₅N₂O₄F₂Na: Calculated: C, 61.12; H, 3.50; N,6.48. Found: C, 61.34; H, 3.38; N, 6.41.

EXAMPLE 41 Preparation of{9-[(2,6-difluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt

A.9-[(2,6-Difluorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

A suspension of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (973mg, 4.0 mM), a-bromo-2,6-difluorotoluene (1.01 g, 4.8 mM), and potassiumcarbonate (553 mg, 4.0 mM) in 10 mL DMF was stirred at room temperaturefor 74 hours. The mixture was diluted with ethyl acetate, washed withH₂O, 1 N HCl, H₂O, saturated NaHCO₃, H₂O, and saturated brine, driedover anhydrous magnesium sulfate, filtered, concentrated. The residuewas purified by column chromatography on silica gel (elution withmethylene chloride/ethyl acetate) to afford 1.04 g (70%) of the9-[(2,6-difluorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-oneas a tan solid. ¹H NMR (CDCl₃) δ7.5 (d, 1H, J=8 Hz), 7.35-7.2 (m, 3H),6.95 (t, 2H, J=8 Hz), 5.4 (s, 2H), 4.0 (s, 3H), 3.05 (t, 2H, J=6 Hz),2.6 (t, 2H, J=6 Hz), and 2.25 (m, 2H). IR (KBr, cm⁻¹) 1728 and 1655. MS(ES) m/e 370.

Elemental Analyses for C₂₁H₁₇NO₃F₂: Calculated: C, 68.29; H, 4.64; N,3.79. Found: C, 68.51; H, 4.82; N, 3.78.

B. 9-[(2,6-Difluorophenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A 60% oil dispersion of sodium hydride (257 mg, 6.42 mM) was added to asolution of the9-[(2,6-difluorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(1.03 g, 2.79 mM) in 7 mL of dioxane at room temperature. After 5minutes methyl benzenesulfinate (0.6 mL, 4.46 mM) was added and themixture stirred at room temperature for 1.75 hours. The mixture wasdiluted with 10 mL dioxane, then glacial acetic acid (0.37 mL, 6.42 mM)was added. The resultant mixture was refluxed for 45 min, cooled to roomtemperature, diluted with ethyl acetate, washed three times withsaturated NaHCO₃, and saturated brine, dried over anhydrous magnesiumsulfate, filtered and concentrated. The residue was purified by columnchromatography on silica gel (elution with toluene) to afford 480 mg(47%) of the 9-[(2,6-difluorophenyl)methyl]-4-hydroxy-5-carbomethyoxycarbazole as a yellow solid. 1H NMR (CDCl₃) δ10.15 (s, 1H), 7.95 (d, 1H,J=8 Hz), 7.5 (d, 1H, J=8 Hz), 7.5-7.0 (m, 4H), 6.9-6.8 (m, 3H), 5.6 (s,2H), and 4.1 (s, 3H). IR (KBr, cm⁻¹) 3040 and 1682. MS (ES) m/e 366,368.

Elemental Analyses for C₂₁H₁₅NO₃F₂: Calculated: C, 68.66; H, 4.12; N,3.81. Found: C, 69.48; H, 4.07; N, 4.11.

C. 9-[(2,6-Difluorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the9-[(2,6-difluorophenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole (514mg, 1.4 mM) in 5 mL THF and 20 mL concentrated aqueous ammoniumhydroxide was stirred at room temperature for 64 hours. The pH wasadjusted to 10.5 with 5 N HCl. The resultant precipitate was collectedby filtration, resuspended in H₂O, adjusted the pH to 11.7 withconcentrated ammonium hydroxide. The resultant precipitate was collectedby filtration. The precipitate was dissolved in ethyl acetate, washedthree times with 5 N NaOH, H₂O, and saturated brine, dried overanhydrous magnesium sulfate, filtered, concentrated to afford 310 mg(70%) of the 9-[(2,6-difluorophenyl)methyl]-4-hydroxy-5-carbamoylcarbazole as a yellow solid. ¹H NMR (DMSO-d6) δ10.4 (s, 1H), 8.8 (br s,1H), 8.4 (br s, 1H), 7.8 (d, 1H, J=8 Hz), 7.6-7.0 (m, 7H), 6.6 (d, 1H,J=8 Hz), and 5.7 (s, 2H). IR (KBr, cm⁻¹) 3404, 3113, 1626, and 1587. MS(ES) m/e 351, 353.

Elemental Analyses for C₂₀H₁₄N₂O₂F₂: Calculated: C, 68.18; H, 4.01; N,7.95. Found: C, 68.45; H, 4.01; N, 7.87.

D. {9-[(2,6-Difluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester

40% Methanolic Triton B (0.49 mL, 1.07 mM) was added to a solution ofthe 9-[(2,6-difluorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (290mg, 0.82 mM) in 5 mL DMF at room temperature. After 15 minutes, methylbromoacetate (259 mg, 1.65 mM) was added and the resultant mixturestirred at room temperature for 24 hours. The mixture was diluted withH₂O and the resultant white precipitate collected by filtration,triturated with diethyl ether/hexanes, and dried in vacuo to afford 228mg (65%) of the19-[(2,6-difluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester as a white solid. ¹H NMR (CDCl₃) δ7.65 (d, 1H, J=8 Hz),7.45-7.2 (m, 5H), 6.85 (t, 2H, J=8 Hz), 6.55 (d, 1H, J=8 Hz), 6.3 (br s,1H), 6.0 (br s, 1H), 5.5 (s, 2H), 4.9 (s, 2H), and 3.8 (s, 3H). IR (KBr,cm⁻¹) 3432, 3170, 1762, and 1675. MS (ES) m/e 425.

Elemental Analyses for C₂₃H₁₈N₂O₄F₂: Calculated: C, 65.09; H, 4.28; N,6.60. Found: C, 65.05; H, 4.40; N, 6.53.

E. {9-[(2,6-Difluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, sodium salt

A suspension of the{9-[(2,6-difluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester (85 mg, 0.2 mM) and 0.22 mL (0.22 mM) of 1 N NaOH in 5 mLof ethanol was stirred for 18 hours at 25° C. A small volume of diethylether/hexanes was added, then cooled in the refrigerator. The resultantwhite precipitate was collected by filtration, washed with a smallamount of EtOH/diethyl ether/hexanes, then dried in vacuo to afford 82mg (95%) of the{9-[(2,6-difluorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt as a white powder. ¹H NMR (DMSO-d6) δ7.6 (d, 1H, J=8 Hz),7.55 (br s, 1H), 7.45-7.3 (m, 3H), 7.25 (t, 1H, J=8 Hz), 7.1-7.0 (m,4H), 6.5 (d, 1H, J=8 Hz), 5.65 (s, 2H), and 4.3 (s, 2H). IR (KBr, cm⁻¹)3470, 3360, 1658, and 1606. MS (ES) m/e 409, 411, 433.

Elemental Analyses for C₂₂H₁₅N₂O₄F₂Na: Calculated: C, 61.12; H, 3.50; N,6.48. Found: C, 59.18; H, 3.70; N, 6.19.

EXAMPLE 42 Preparation of{9-[(2,6-dichlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt

A.9-[(2,6-Dichlorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

A suspension of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (973mg, 4.0 mM), a-bromo-2,6-dichlorotoluene (1.19 g, 4.8 mM), and potassiumcarbonate (553 mg, 4.0 mM) in 10 mL DMF was stirred at room temperaturefor 24 hours. The mixture was diluted with ethyl acetate, washed withH₂O, 1 N HCl, H₂O, saturated NaHCO₃, H₂O, and saturated brine, driedover anhydrous magnesium sulfate, filtered, concentrated. The residuewas purified by column chromatography on silica gel (elution withmethylene chloride/ethyl acetate) to afford 900 mg (56%) of the9-[(2,6-dichlorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-oneas a white foam. ¹H NMR (CDCl₃) δ7.4-7.2 (m, 6H), 5.6 (s, 2H), 4.0 (s,3H), 2.9 (t, 2H, J=6 Hz), 2.55 (t, 2H, J=6 Hz), and 2.2 (m, 2H). IR(KBr, cm⁻¹) 1725 and 1652. MS (ES) m/e 400, 402, 404.

Elemental Analyses for C₂₁H₁₇NO₃Cl₂: Calculated: C, 62.70; H, 4.26; N,3.48. Found: C, 62.98; H, 4.35; N, 3.35.

B. 9-[(2,6-Dichlorophenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of the9-[(2,6-dichlorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(861 mg, 2.14 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (595 mg,2.57 mM) in 60 mL of toluene was stirred at reflux for 3.5 hours. Themixture was purified directly by column chromatography on silica gel(elution with methylene chloride) to afford 255 mg (29%) of the9-[(2,6-dichlorophenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole as ayellow solid. ¹H NMR (CDCl₃) δ10.05 (s, 1H), 7.95 (d, 1H, J=8 Hz), 7.6(d, 1H, J=8 Hz), 7.45-7.2 (m, 5H), 6.95 (d, 1H, J=8 Hz), 6.8 (d, 1H, J=8Hz), 5.75 (s, 2H), and 4.1 (s, 3H). IR (KBr, cm⁻¹) 3430 and 1668. MS(ES) m/e 409, 411.

Elemental Analyses for C₂₁H₁₅NO₃Cl₂: Calculated: C, 63.02; H, 3.78; N,3.50. Found: C, 63.78; H, 3.82; N, 3.59.

C. 9-[(2,6-Dichlorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the9-[(2,6-dichlorophenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole (240mg, 0.6 mM) in 5 mL THF and 20 mL concentrated aqueous ammoniumhydroxide was stirred at room temperature for 22 hours. The resultantprecipitate was collected by filtration and dried in vacuo to afford 151mg (65%) of the 9-[(2,6-dichlorophenyl)methyl]-4-hydroxy-5-carbamoylcarbazole as a yellow solid. ¹H NMR (DMSO-d6) δ10.35 (s, 1H), 8.8 (br s,1H), 8.4 (br s, 1H), 7.7 (d, 1H, J=8 Hz), 7.6-7.3 (m, 5H), 7.25 (t, 1H,J=8 Hz), 6.85 (d, 1H, J=8 Hz), 6.55 (d, 1H, J=8 Hz), and 5.85 (s, 2H).IR (KBr, cm⁻¹) 3429, 1631, and 1597. MS (ES) m/e 385, 387.

Elemental Analyses for C₂₀H₁₄N₂O₂Cl₂: Calculated: C, 62.35; H, 3.66; N,7.27. Found: C, 62.87; H, 3.99; N, 6.00.

D. {9-[(2,6-Dichlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester

40% Methanolic Triton B (0.23 mL, 0.49 mM) was added to a solution ofthe 9-[(2,6-dichlorophenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (146mg, 0.38 mM) in 5 mL DMF at room temperature. After 15 minutes, methylbromoacetate (119 mg, 0.76 mM) was added and the resultant mixturestirred at room temperature for 17 hours. The mixture was diluted withethyl acetate, washed with H₂O, 1 N HCl, H₂O, sat. NaHCO₃, and saturatedbrine, dried over magnesium sulfate, filtered, and concentrated. Theresidue was purified by column chromatography on silica gel (elutionwith ethyl acetate) to afford 83 mg (48%) of the{9-[(2,6-dichlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester as a tan solid. ¹H NMR (DMSO-d6) δ7.5-7.0 (m, 10H), 6.55(d, 1H, J=8 Hz), 5.8 (s, 2H), 4.9 (s, 2H), and 3.75 (s, 3H). IR (KBr,cm⁻¹). MS (ES) m/e 457, 459.

E. {9-[(2,6-Dichlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, sodium salt

A suspension of the{9-[(2,6-dichlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester (45.7 mg, 0.1 mM) and 0.11 mL (0.11 mM) of 1 N NaOH in 5 mLof ethanol was stirred for 22 hours at 25° C. A small volume of diethylether/hexanes was added, then cooled in the refrigerator. The resultantwhite precipitate was collected by filtration, washed with a smallamount of EtOH/diethyl ether/hexanes, then dried in vacuo to afford 40mg (86%) of the{9-[(2,6-dichlorophenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,sodium salt as a white powder. ¹H NMR (DMSO-d6) δ7.6-7.4 (m, 6H), 7.3(t, 1H, J=8 Hz), 7.2 (t, 1H, J=8 Hz), 7.0 (d, 1H, J=8 Hz), 6.9 (t, 1H,J=8 Hz), 6.5 (d, 1H, J=8 Hz), 5.8 (s, 2H), and 4.25 (s, 2H). MS (ES) m/e441, 443, 445.

EXAMPLE 43 Preparation of{9-[(3-trifluoromethoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, sodium salt

A.9-[(3-Trifluoromethoxyphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

A suspension of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (935mg, 3.85 mM), 3-trifluoromethoxybenzyl bromide (1.0 g, 3.93 mM), andpotassium carbonate (531 mg, 3.85 mM) in 20 mL DMF was stirred at roomtemperature for 17 hours. The mixture was diluted with ethyl acetate,washed with H₂O and saturated brine, dried over anhydrous magnesiumsulfate, filtered, concentrated to afford 1.6 g (100%) of the9-[(3-trifluoromethoxyphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-oneas a foam. ¹H NMR (DMSO-d6) δ7.7 (dd, 1H, J=1 and 8 Hz), 7.45 (t, 1H,J=8 Hz), 7.3-7.1 (m, 4H), 7.05 (d, 1H, J=8 Hz), 5.6 (s, 2H), 3.8 (s,3H), 3.0 (m, 2H), 2.45 (m, 2H), and 2.1 (m, 2H). IR (CDCl₃, cm⁻¹) 1729,1647, 1439, 1259, 1176, and 1116. MS (ES) m/e 418.

Elemental Analyses for C₂₂H₁₈NO₄F₃: Calculated: C, 63.31; H, 4.32; N,3.36. Found: C, 63.12; H, 4.35; N, 3.31.

B. 9-[(3-Trifluoromethoxyphenyl)methyl]-4-hydroxy-5-carbomethoxycarbazole

A solution of the9-[(3-trifluoromethoxyphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(0.75 g, 1.8 mM) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (490 mg,2.16 mM) in 70 mL of toluene was stirred at reflux for 6 hours. Themixture was purified directly by column chromatography on silica gel(elution with methylene chloride) to afford 300 mg (40%) of the9-[(3-trifluoromethoxyphenyl)methyl]-4-hydroxy-5-carbomethyoxy carbazoleas a yellow solid. ¹H NMR (DMSO-d6) δ10.25 (s, 1H), 7.7 (d, 1H, J=8 Hz),7.5-7.0 (m, 8H), 6.6 (d, 1H, J=8 Hz), 5.7 (s, 2H), and 3.85 (s, 3H). IR(KBr, cm⁻¹) 3200, 1673, 1441, 1268, 1217, 1173, and 753. MS (ES) m/e414, 416.

Elemental Analyses for C₂₂H₁₆NO₃F₃ Calculated: C, 63.61; H, 3.86; N,3.37. Found: C, 63.40; H, 3.99; N, 3.43.

C. 9-[(3-Trifluoromethoxyphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the9-[(3-trifluoromethoxyphenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole(260 mg, 0.62 mM) in 10 mL THF and 30 mL concentrated aqueous ammoniumhydroxide was stirred vigorously for 132 hours. The mixture was dilutedwith ethyl acetate and acidified to pH 1 with 5 N HCl. The aqueous layerwas extracted three times with ethyl acetate. The combined organicextracts were washed with H₂O and saturated brine, dried over magnesiumsulfate, filtered, and concentrated. The residue was purified by columnchromatography on silica gel (elution with gradient hexanes/ethylacetate) to afford 150 mg (60%) of the9-[(3-trifluoromethoxyphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole asan off-white solid. ¹H NMR (DMSO-d6) δ10.5 (s, 1H), 8.8 (br s, 1H), 8.4(br s, 1H), 7.85 (dd, 1H, J=1 and 8 Hz), 7.5-7.15 (m, 5H), 7.1 (d, 1H,J=8 Hz), 7.0 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), 5.95 (d, 1H, J=8 Hz),and 5.65 (s, 2H). IR (KBr, cm⁻¹) 3431, 3203, 1629, 1601, 1580, 1548,1446, 1330, 1261, 1215, and 777. MS (ES) m/e 399, 401.

Elemental Analyses for C₂₁H₁₅N₂O₂F₃: Calculated: C, 63.00; H, 3.75; N,7.0. Found: C, 63.15; H, 4.07; N, 6.84.

D.{9-[(3-Trifluoromethoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester

40% Methanolic Triton B (0.15 mL, 0.34 mM) was added to a solution ofthe 9-[(3-trifluoromethoxyphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole(115 mg, 0.28 mM) in 8 mL DMF at room temperature. After 3 minutes,methyl bromoacetate (65 mg, 0.41 mM) was added and the resultant mixturestirred at room temperature for 23 hours. The mixture was diluted withethyl acetate, washed with H₂O, and saturated brine, dried overmagnesium sulfate, filtered, and concentrated. The residue was purifiedby column chromatography on silica gel (elution with ethyl acetate) toafford 112 mg (83%) of the{9-[(3-trifluoromethoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester as a white solid. ¹H NMR (DMSO-d6) δ7.6 (d, 1H, J=8Hz), 7.55 (br s, 1H), 7.5-7.0 (m, 9H), 6.6 (d, 1H, J=8 Hz), 5.7 (s, 2H),4.9 (s, 2H), and 3.75 (s, 3H). IR (KBr, cm⁻¹) 3488, 3141, 1763, 1674,1501, 1444, 1269, 1215, 1178, 1102, 772, and 714. MS (FD) m/e 472.

Elemental Analyses for C₂₄H₁₉N₂O₅F₃: Calculated: C, 61.02; H, 4.03; N,5.93. Found: C, 61.05; H, 4.17; N, 5.81.

E.{9-[(3-Trifluoromethoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, sodium salt

A suspension of the{9-[(3-trifluoromethoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester (22.4 mg, 0.047 mM) and 0.065 mL (0.065 mM) of 1 NNaOH in 5 mL of ethanol was stirred for 24 hours at 25° C. The solventwas removed in vacuo and the residue suspended in EtOH. The resultantwhite precipitate was collected by filtration, washed with a smallamount of EtOH, then dried in vacuo to afford 9 mg (41%) of the{9-[(3-trifluoromethoxyphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, sodium salt as a white powder. MS (ES) m/e 457, 459.

EXAMPLE 44 Preparation of{9-[(2-biphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid

A. 2-Carbomethoxy-6-nitro-2′-methoxy-biphenyl

A solution of methyl 2-chloro-3-nitrobenzoate (2.16 g, 10.0 mM),2-methoxybenzeneboronic acid (1.64 g, 10.5 mM),tetrakis(triphenylphosphine)palladium (0) (584 mg, 0.5 mM), and 2 Maqueous sodium carbonate (10.5 mL, 21.0 mM) in 50 mL of THF was wrappedin aluminum foil and stirred at reflux for 27 hours. The THF was removedin vacuo and the residue dissolved in ethyl acetate. The mixture waswashed with with H₂O, 1 N HCl, H₂O, sat. NaHCO₃, and saturated brine,dried over magnesium sulfate, filtered, and concentrated. The resultantlight brown oil was purified by column chromatography on silica (elutionwith gradient toluene/ethyl acetate) to afford 2.0 g (69%) of2-carbomethoxy-6-nitro-2′-methoxy-biphenyl as a yellow-orange solid. ¹HNMR (CDCl₃) δ8.05 (d, 1H, J=8 Hz), 7.95 (d, 1H, J=8 Hz), 7.55 (t, 1H,J=8 Hz), 7.35 (t, 1H, J=8 Hz), 7.05 (d, 1H, J=8 Hz), 7.0 (t, 1H, J=8Hz), 6.9 (d, 1H, J=8 Hz), 3.7 (s, 3H), and 3.6 (s, 3H). IR (KBr, cm⁻¹)1730, 1538, 1499, 1366, 1298, 1271, 1130, 774, 765, 759, 752, and 707.MS (ES) m/e 288.

Elemental Analyses for C₁₅H₁₃NO₅: Calculated: C, 62.72; H, 4.56; N,4.88. Found: C, 62.65; H, 4.61; N, 4.72.

B. 9H-4-methoxy-5-carbomethoxy carbazole

A solution of the 2-carbomethoxy-6-nitro-2′-methoxy-biphenyl (144 mg,0.5 mM) in triethylphosphite (339 mg, 0.35 mL, 2.0 mM) was heated at150-160° C. in a sealed tube for 4 h then at room temperature for 15hours. The mixture was dried in vacuo with toluene, then purified bypreparative TLC on silica gel (elution with 4:1 toluene/ethyl acetate toafford 39.0 mg (30%) of the 9H-4-methoxy-5-carbomethoxy carbazole as atan solid. ¹H NMR (CDCl₃) δ8.25 (s, 1H), 7.4-7.2 (m, 4H), 7.05 (d, 1H,J=8 Hz), 6.65 (d, 1H, J=8 Hz), and 4.05 (s, 6H). IR (CHCl₃, cm⁻¹) 3274(br), 1706, 1602, 1583, 1456, 1431, 1351, 1333, 1294, 1239, 1198, 1175,1144, 1103, 781, and 724. MS (ES) m/e 256.

Elemental Analyses for C₁₅H₁₃NO₃: Calculated: C, 70.58; H, 5.13; N,5.49. Found: C, 70.85; H, 5.29; N, 5.29.

C. 9-[(2-Biphenyl)methyl]-4-methoxy-5-carbomethoxy carbazole

A solution of the 9H-4-methoxy-5-carbomethoxy carbazole (727 mg, 2.85mM) in 15 mL DMF was added to 60% NaH mineral oil dispersion (342 mg,8.56 mM, washed twice with hexane) at room temperature. Followingcessation of gas evolution, 2-(bromomethyl)biphenyl (0.79 mL, 4.19 mM)was added and the mixture stirred at room temperature for 19 hours. Themixture was diluted with ethyl acetate and H₂O. The ethyl acetate layerwas washed with with H₂O, 1 N HCl, H₂O, sat. NaHCO₃, and saturatedbrine, dried over magnesium sulfate, filtered, and concentrated toafford 1.2 g (100%) of the9-[(2-biphenyl)methyl]-4-methoxy-5-carbomethoxy carbazole as a yellowsolid. ¹H NMR (CDCl₃) δ7.6-7.2 (m, 11H), 7.05 (t, 1H, J=8 Hz), 6.8 (d,1H, J=8 Hz), 6.65 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), 5.4 (s, 2H) and4.0 (s, 6H). IR (KBr, cm⁻¹) 1727. MS (ES) m/e 422.

Elemental Analyses for C₂₈H₂₃NO₃: Calculated: C, 79.79; H, 5.50; N,3.32. Found: C, 79.53; H, 5.61; N, 3.15.

D. 9-[(2-Biphenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

Boron tribromide (1.0 M in methylene chloride, 1.69 mL, 1.69 mM) wasslowly added to a solution of9-[(2-biphenyl)methyl]-4-methoxy-5-carbomethoxy carbazole (547 mg, 1.3mM) in 5 mL methylene chloride at −10° C. After 2 hours, the mixture wasquenched with methanol (1.31 mL, 32.5 mM) and stirred at roomtemperature for 5 hours. The mixture was diluted with ethyl acetate,washed with H₂O, 1 N HCl, H₂O, sat. NaHCO₃, and saturated brine, driedover magnesium sulfate, filtered, and concentrated. The residue waspurified by column chromatography on silica gel (elution with methylenechloride) to afford 445 mg (84%) of the9-[(2-biphenyl)methyl]-4-hydroxy-5-carbomethoxy carbazole as a yellowfoam. ¹H NMR (CDCl₃) δ10.35 (s, 1H), 7.95 (d, 1H, J=8 Hz), 7.6-7.2 (m,10fH), 7.05 (t, 1H, J=8 Hz), 6.8 (m, 2H), 6.6 (d, 1H, J=8 Hz), 5.4 (s,2H), and 4.1 (s, 3H). IR (KBr, cm⁻¹) 3200 (br), 1680, 1596, 1451, 1439,1427, 1333, 1262, 1217, 1137, 752, 713, 1763 and 703. MS (ES) m/e 406,408.

Elemental Analyses for C₂₇H₂₁NO₃: Calculated: C, 79.59; H, 5.19; N,3.44. Found: C, 80.62; H, 5.73; N, 3.44.

E. 9-[(2-Biphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the 9-[(2-biphenyl)methyl]-4-hydroxy-5-carbomethoxycarbazole (407.5 mg, 1.0 mM) in 5 mL THF and 20 mL concentrated aqueousammonium hydroxide was sonicated for 28.5 hours at 40-50° C. The mixturewas diluted with ethyl acetate and acidified to pH 1 with 5 N HCl. Theaqueous layer was extracted three times with ethyl acetate. The combinedorganic extracts were washed with H₂O and saturated brine, dried overmagnesium sulfate, filtered, and concentrated. The residue was purifiedby column chromatography on silica gel (elution with gradient methylenechloride/ethyl acetate) to afford 165 mg (42%) of the9-[(2-biphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole as a yellowsolid. ¹H NMR (DMSO-d6) δ10.45 (s, 1H), 8.8 (br s, 1H), 8.4 (br s, 1H),7.6-7.2 (m, 11H), 7.05 (t, 1H, J=8 Hz), 6.75 (d, 1H, J=8 Hz), 6.55 (d,1H, J=8 Hz), 6.35 (d, 1H, J=8 Hz), and 5.55 (s, 2H). IR (KBr, cm⁻¹)3451, 3331, and 1639. MS (ES) m/e 391, 393.

Elemental Analyses for C₂₆H₂₀N₂O₂: Calculated: C, 79.57; H, 5.14; N,7.14. Found: C, 79.60; H, 5.37; N, 6.90.

F. {9-[(2-Biphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,tert-butyl ester

40% Methanolic Triton B (0.2 mL, 0.44 mM) was added to a solution of the9-[(2-biphenyl)methyl]-4-hydroxy-5-carbamoyl carbazole (141 mg, 0.36 mM)in 5 mL DMF at room temperature. After 5 minutes, t-butyl bromoacetate(107 mg, 0.54 mM) was added and the resultant mixture stirred at roomtemperature for 6.5 hours. The mixture was diluted with ethyl acetate,washed with H₂O, 1 N HCl, H₂O, sat. NaHCO₃, and saturated brine, driedover magnesium sulfate, filtered, and concentrated. The residue waspurified by column chromatography on silica gel (elution with gradientmethylene chloride/ethyl acetate) to afford 140 mg (76%) of the{9-[(2-biphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,tert-butyl ester as a white foam. ¹H NMR (CDCl₃) δ7.6-7.2 (m, 13H), 7.05(t, 1H, J=8 Hz), 6.85 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), 6.55 (d, 1H,J=8 Hz), 5.4 (s, 2H), 4.8 (s, 2H), and 1.45 (s, 9H). IR (CHCl₃, cm⁻¹)1753 and 1674. MS (ES) m/e 507.

Elemental Analyses for C₃₂H₃₀N₂O₄: Calculated: C, 75.87; H, 5.97; N,5.53. Found: C, 76.10; H, 6.12; N, 5.37.

G. {9-[(2-Biphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid

A solution of the{9-[(2-biphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,tert-butyl ester (116 mg, 0.23 mM) in 3 mL of trifluoroacetic acid wasstirred at room temperature for 2 hours. The solvent was removed invacuo. The residue was triturated with ethyl ether/hexanes, then driedin vacuo to afford 103 mg (100%) of the{9-[(2-biphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid as awhite powder. ¹H NMR (DMSO-d6) δ12.95 (br s, 1H), 7.75 (s, 1H), 7.65 (d,2H, J=8 Hz), 7.55 (t, 2H, J=8 Hz), 7.4 (s, 1H), 7.35-7.2 (m, 6H), 7.05(m, 2H), 6.9 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), 6.4 (d, 1H, J=8 Hz),5.55 (s, 2H), and 4.8 (s, 2H). IR (KBr, cm⁻¹) 3400, 3200, 1736, 1636,1618, 1583, 1499, 1455, 1433, 1329, 1249, 1155, 753, and 713. MS (ES)m/e 449, 451.

Elemental Analyses for C₂₈H₂₂N₂O₄: Calculated: C, 74.65; H, 4.92; N,6.22. Found: C, 75.47; H, 4.77; N, 6.24.

EXAMPLE 45 Esterification of{9-[(2-Biphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid to the{9-[(2-Biphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid, methylester

A suspension of the{9-[(2-biphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid (35 mg,0.08 mM), iodomethane (12 mg, 0.09 mM), and potassium carbonate (13 mg,0.09 mM) in 2 mL DMF at room temperature for 4.5 hours. The mixture wasdiluted with ethyl acetate, washed with H₂O, sat. NaHCO₃, H₂O, andsaturated brine, dried over magnesium sulfate, filtered, andconcentrated to afford 36 mg (100%) of the{9-[(2-biphenyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid, methylester as a white solid. ¹H NMR (CDCl₃) δ7.6-7.2 (m, 11H), 7.1 (t, 1H,J=8 Hz), 6.85 (d, 1H, J=8 Hz), 6.6 (d, 1H, J=8 Hz), 6.55 (d, 1H, J=8Hz), 5.8 (br s, 2H), 5.4 (s, 2H), 4.8 (s, 2H), and 3.75 (s, 3H). IR(KBr, cm⁻¹) 1750 and 1666. MS (ES) m/e 465.

Elemental Analyses for C₂₉H₂₄N₂O₄: Calculated: C, 74.98; H, 5.21; N,6.03. Found: C, 75.09; H, 5.57; N, 5.63.

EXAMPLE 46 Preparation of[9-Benzyl-4-carbamoyl-1,2,3,4-tetrahydrocarbaole-5-yl]oxyacetic acid

A. 9-Benzyl-4-carboxy-5-methoxy-1,2,3,4-tetrahydrocarbazole, Ethyl Ester

A solution of 1.50 g (4.02 mmol) of9-Benzyl-4-carboxy-8-chloro-5-methoxy-1,2,3,4-tetrahydrocarbazole, ethylester and 0.45 g (4.40 mmol) of Et₃N in 25 mL of EtOH was treated with0.24 g of 5% Pd—C and the mixture hydrogenated at 60 pounds per squareinch for 16 hours. The reaction was filtered and concentrated in vacuoto give 1.40 g of a tan solid. ¹H NMR (CDCl₃) δ7.30-7.19 (m, 3H),7.03-6.95 (m, 3H), 6.80 (d, 1H, J=8.1 Hz), 6.44 (d, 1H, J=7.7 Hz), 5.22(d, 2H, J=5.9 Hz), 4.22-4.11 (m, 3H), 3.82 (s, 3H), 2.75-2.64 (m, 1H),2.59-2.48 (m, 1H), 2.11-1.64 (m, 4H), and 1.25 (t, 3H, J=7.0 Hz). IR(CHCl₃) 2959, 1725, 1499, 1453, 1260, 1178, 1128 cm−1;

Elemental Analyses for C₂₃H₂₅NO₃: Calculated: 363.1836. Found: 363.1834.

B. 9-Benzyl-4-carbamoyl-5-hydroxy-1,2,3,4-tetrahydrocarbazole

A 0° C. solution of 1.00 g (2.80 mmol)9-benzyl-4-carboxy-5-methoxy-1,2,3,4-tetrahydrocarbazole, ethyl ester in15 mL of CH₂Cl₂ was treated with 22.40 mL (22.40 mmol; 1M in CH₂Cl₂) ofBBr₃. The cold bath was removed and the reaction stirred until tlcanalysis (10% EtOAc in hexanes) indicated complete consumption ofstarting material (1.5 hours). The reaction was cooled to 0° C. and wasquenched with 5.0 mL of MeOH. The mixture was stirred at ambienttemperature for 18 hours and was concentrated in vacuo. The black oilwas taken up in 200 mL of CH₂Cl₂ and the solution washed with H₂O (100mL) and saturated aqueous NaHCO₃ (100 mL). Evaporation of the solvent invacuo afforded 700 mg of a black oil. Purification by radialchromatography (10% EtOAc in hexanes) afforded 400 mg of9-benzyl-4-carboxy-5-hydroxy-1,2,3,4-tetrahydrocarbazole, ethyl esterwhich was taken on directly to the next reaction.

The phenol was taken up in 40 ml of THF and the solution treated with 10mL of NH₄OH. The reaction vessel was capped and the mixture stirredvigorously for 13 days. The reaction was poured into H₂O and the mixtureextracted with EtOAc (3×150 mL). The combined organic layers were dried(Na₂SO₄), filtered and concentrated in vacuo to give 300 mg of a brownfoam. Radial chromatography (3% MeOH in CH₂Cl₂) afforded 50 mg ofstarting phenol and 80 mg (0.03 mmol; 22%) of9-benzyl-4-carbamoyl-5-hydroxy-1,2,3,4-tetrahydrocarbazole. ¹H NMR(CDCl₃) δ7.33-7.24 (m, 3H), 7.06-6.97 (m, 3H), 6.81 (d, 1H, J=8.1 Hz),6.56 (d, 1H, J=7.5 Hz), 5.22 (d, 2H, J=2.2 Hz), 4.20-4.15 (m, 1H),2.78-2.67 (m, 1H), 2.63-2.51 (m, 1H), 2.35-2.27 (m, 1H), and 2.09-1.91(m, 3H), no phenol proton detected. IR (CHCl3) 3007, 1667, 1586, 1567,1496, 1266 cm−1;

Elemental Analyses for C₂₀H₂₁N₂O₂: Calculated: 321.1603. Found:321.1607.

C. [9-Benzyl-4-carbamoyl-1,2,3,4-tetrahydrocarbazole-5-yl]oxyaceticacid, Methyl Ester

A solution of 80 mg (0.25 mmol) of9-benzyl-4-carbamoyl-5-hydroxy-1,2,3,4-tetrahydrocarbazole in 2.5 mL ofDMF was treated with 61 mg (0.30 mmol) of Cs₂CO₃ followed by 26 mg (0.30mmol) of methyl bromoacetate. The mixture was stirred at roomtemperature until tlc indicated complete consumption of startingmaterial (2 hours). The reaction was diluted with H₂O (10 mL) and wasextracted with EtOAc (3×10 mL). The combined organic layers were washedwith H₂O (3×20 mL), dried over Na₂SO₄, filtered, and concentrated invacuo. The residue was purified by radial chromatography (SiO₂; 2.5%MeOH in CH₂Cl₂) to afford 50 mg (0.13 mmol; 51%) of[9-benzyl-4-carbamoyl-1,2,3,4-tetrahydrocarbazole-5-yl]oxyacetic acid,methyl ester as an oil. ¹H NMR (CDCl₃) δ7.33-7.21 (m, 3H), 7.05-6.98 (m,3H), 6.98 (d, 1H, J=7.4 Hz), 6.46 (br s, 1H), 6.37 (d, 1H, J=7.7 Hz),5.52 (br s, 1H), 5.23 (d, 1H, J=4.9 Hz) 4.79-4.70 (m, 2H), 4.20-4.15 (m,1H), 3.81 (s, 3H), 2.79-2.69 (m, 1H), 2.63-2.49 (m, 1H), 2.43-2.35 (m,1H), 2.25-2.09 (m, 1H), and 1.99-1.78 (m, 2H). IR (CHCl₃, cm⁻¹) 1759,1670, 1497, 1453, 1440, and 1132. MS (ES) m/e 393 (M+1).

Elemental Analyses for C₂₃H₂₄N₂O₄: Calculated: C, 70.39; H, 6.16; N,7.14. Found: C, 70.29; H, 6.31; N, 7.08.

D. [9-Benzyl-4-carbamoyl-1,2,3,4-tetrahydrocarbazole-5-yl]oxyacetic acid

A solution of 30 mg (0.076 mmol) of[9-benzyl-4-carbamoyl-1,2,3,4-tetrahydrocarbazole-5-yl]oxyacetic acid,methyl ester in 1.0 mL of THF and 1.0 mL of MeOH was treated with 0.2 mLof 1 N aqueous LiOH (0.2 mmol). The mixture was stirred for 18 hours. Anadditional 0.2 mL of 1 N aqueous LiOH (0.2 mmol) was added and stirringcontinued. After 1 hour, the mixture was concentrated in vacuo. Theresidue was dissolved in 2.0 mL of H₂O and the solution acidified with0.2 N aqueous HCl. The solid was filtered and dried to afford 25 mg of[9-benzyl-4-carbamoyl-1,2,3,4-tetrahydrocarbazole-5-yl]oxyacetic acid asa white solid. ¹H NMR (DMSO-d6) δ7.36-7.12 (m, 5H), 7.05-6.83 (m, 5H),6.71 (br s, 1H), 6.35 (d, 1H, J=7.6 Hz), 5.27 (s, 2H), 4.64 (s, 2H),3.93-3.84 (m, 2H), 2.75-2.64 (m, 1H), 2.16-1.95 (m, 2H), 1.81-1.64 (m,2H) and 1 proton masked by H₂O peak between 2.58-2.40. IR (KBr, cm⁻¹)3435, 2936, 1722, 1644, 1586, 1566, 1495, 1451, 1354, 1227, 1134, 730,716, and 698. MS (ES) m/e 377 (M−1) and 379 (M+1).

Elemental Analyses for C₂₂H₂₂N₂O₄: Calculated: C, 69.83; H, 5.86; N,7.40. Found: C, 70.11; H, 5.76; N, 7.12.

EXAMPLE 47 Preparation of{9-[(2-Pyridyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid

A. 9-[(2-Pyridyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

A 0° C. suspension of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one(1.50 g, 6.17 mmol), potassium carbonate (2.60 g, 18.8 mmol), andcatalytic amount of sodium iodide (ca. 10 mg), was treated with2-picolyl chloride hydrochloride (1.10 g, 6.70 mmol). The cold bath wasremoved and the reaction stirred at ambient temperature 72 hours. Thereaction was poured into H₂O (100 mL) and the mixture extracted fourtimes with ethyl acetate. The combined organic layers were washed fourtimes with H₂O, once with saturated brine, dried over anhydrous sodiumsulfate, filtered, and concentrated. The residue was purified by flashchromatography on silica gel (elution with 70% then 80% then 85% EtOAcin hexanes) to afford 1.70 g (82%) of the9-[(2-pyridyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one as anoil which solidified on standing. ¹H NMR (CDCl₃) δ8.52 (br s, 1H),7.54-7.47 (m, 1H), 7.34-7.26 (m, 2H), 7.18-7.11 (m, 2H), 6.67 (d, J=7.8Hz, 1H) 5.34 (s, 2H), 3.99 (s, 3H), 2.87 (t, 2H, J=6.0 Hz), 2.50 (t, 2H,J=6.3 Hz), and 2.20-2.13 (m, 2H). IR (CDCl₃, cm⁻¹) 3010, 2953, 1725,1654, 1463, 1446, 1288 and 1121. MS (ES) m/e 335 (M+1).

Elemental Analyses for C₂₀H₁₈N₂O₃: Calculated: C, 71.84; H, 5.43; N,8.38. Found: C, 71.70; H, 5.49; N, 8.37.

B. 9-[(2-Pyridyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of the9-[(2-pyridyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one (500mg, 1.50 mmol) in 2 mL of dioxane was treated with sodium hydride (140mg; 3.50 mmol; 60% dispersion in mineral oil) and the mixture stirredfor 15 minutes. Methyl benzenesulfinate (0.32 mL; 2.45 mmol) was addeddropwise and the reaction stirred at room temperature. After 0.5 hours,gas evolution began and the reaction turned dark brown. The mixture wasstirred until tlc indicated complete consumption of starting material (1hour) at which time glacial acetic acid (0.20 mL; 3.50 mmol) was added.An additional 2 mL of dioxane was added to assist stirring and themixture was heated to mild reflux for 1 hour. The reaction was cooledand diluted with EtOAc (50 mL). The organic layer was separated, washedonce with saturated aqueous. NaHCO₃ and once with saturated brine, driedover anhydrous sodium sulfate, filtered, and concentrated. The residuewas purified by radial chromatography on silica gel (elution with 20%ethyl acetate in hexanes) to afford 470.0 mg (94%) of the9-[(2-pyridyl)methyl]-4-hydroxy-5-carbomethyoxy carbazole as a solid. ¹HNMR (CDCl₃) δ10.37 (s, 1H), 8.61 (d, 1H, J=3.7 Hz), 8.01 (d, 1H, J=7.8Hz), 7.63 (d, 1H, J=8.3 Hz), 7.47-7.39 (m, 3H), 7.19-7.14 (m, 1H), 6.94(d, 1H, J=8.3 Hz), 6.84 (d, 1H, J=8.3 Hz), 6.59 (d, 1H, J=7.8 Hz), 5.66(s, 2H), and 4.10 (s, 3H). IR (CHCl₃, cm⁻¹) 3200 (br), 1686, 1597, 1442,1428, 1332, 1286, and 1268. MS (ES) m/e 333 (M+1).

Elemental Analyses for C₂₀H₁₆N₂O₃: Calculated: C, 72.28; H, 4.85; N,8.43. Found: C, 72.44; H, 4.79; N, 8.44.

C. 9-[(2-Pyridyl)methyl]-⁴-hydroxy-5-carbamoyl carbazole

A solution of the 9-[(2-pyridyl)methyl]-4-hydroxy-5-carbomethoxycarbazole (480 mg, 1.43 mmol) in 10 mL THF and 40 mL concentratedaqueous ammonium hydroxide was treated with a stream of NH₃ gas toensure saturation. The reaction vessel was capped and the mixture heatedto 35° C. with stirring until tlc indicated complete consumption ofstarting material (20 hours). The THF was evaporated and the aqueouslayer saturated with solid sodium chloride. The mixture was extractedthree times with THF. The combined organic layers were dried overanhydrous sodium sulfate, filtered and concentrated. The foam was takenup in hot ethyl acetate and passed over a shoroom temperaturecolumn ofsilica gel using ethyl acetate as the eluent to afford 247 mg (54%) ofthe 9-[(2-pyridyl)methyl]-4-hydroxy-5-carbamoyl carbazole as a whitesolid. ¹H NMR (DMSO-d6) δ10.46 (s, 1H), 8.81 (br s, 1H), 8.46 (d, 1H,J=5.8 Hz), 8.36 (br s, 1H), 7.8 (dd, 1H, J=2.9 and 6.4 Hz), 7.67-7.59(m, 1H), 7.47-7.41 (m, 2H), 7.30-7.20 (m, 2H), 7.05 (d, 1H, J=7.9 Hz),6.87 (d, 1H, J=8.3 Hz), 6.57 (d, 1H, J=7.8 Hz), and 5.73 (s, 2H). IR(KBr, cm⁻¹) 3404, 3051, 1652, 1618, 1595, 1582, 1567, 1559, 1450, 1436,1334, 1266, 1226, 776, 763 and 647. MS (ES) m/e 318 (M+1).

Elemental Analyses for C₁₉H₁₅N₃O₂: Calculated: C, 71.91; H, 4.76; N,13.24. Found: C, 72.11; H, 4.70; N, 12.95.

D. {9-[(2-Pyridyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester

A mixture of the 9-[(2-pyridyl)methyl]-4-hydroxy-5-carbamoyl carbazole(216 mg, 0.68 mmol) and Cs₂CO₃ (550 mg; 1.69 mmol) in 5 mL DMF wastreated with methyl bromoacetate (0.08 mL; 0.85 mmol). The reaction wasstirred until tlc analysis indicated complete consumption of startingmaterial (2 hours). The mixture was concentrated and the residue takenup in H₂O (50 mL). The aqueous layer was saturated with solid NaCl andwas extracted five times with THF. The combined organic layers weredried over anhydrous sodium sulfate, filtered and concentrated. Thesolid was triturated with EtOAc to afford 205 mg (77%) of the{9-[(2-pyridyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid, methylester as an off white solid. ¹H NMR (DMSO-d6) δ8.47 (d, 1H, J=4.9 Hz),7.66-7.57 (m, 2H), 7.48 (br s, 1H), 7.38-7.27 (m, 2H), 7.24-7.19 (m,2H), 7.19 (br s, 1H), 7.04 (d, 1H, J=7.3 Hz), 6.87 (d, 1H, J=7.8 Hz),6.56 (d, 1H, J=7.8 Hz), 5.71 (s, 2H), 4.89 (s, 2H), and 3.69 (s, 3H). IR(CHCl₃, cm⁻¹) 3380, 3140, 1737, 1675, 1500, 1457, 1354, 1340, 1242,1158, 772, and 715. MS (ES) m/e 390 (M+1).

Elemental Analyses for C₂₂H₁₉N₃O₄: Calculated: C, 67.86; H, 4.92; N,10.79. Found: C, 67.75; H, 5.08; N, 10.66.

E. {9-[(2-Pyridyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,hydrochloride

A slurry of the{9-[(2-pyridyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid, methylester (75.0 mg, 0.19 mmol) in 1.3 mL of THF and 0.4 mL of MeOH wastreated with 0.4 mL of 1 N aqueous LiOH (0.4 mmol) and the mixturestirred at room temperature for 16 hours. The reaction was concentratedand the residue purified by reverse phase chromatography (Vydac C18column using a 5% to 40% gradient of 0.01% HCl in acetonitrile in 0.01%HCl in H₂O. The fractions containing product were lyopholized to afford75 mg (96%) of {9-[(2-pyridyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid hydrochloride as a white powder. ¹H NMR (DMSO-d6) δ¹H NMR (DMSO-d6)δ8.50-8.46 (m, 1H), 7.71 (br s, 1H), 7.62-7.67 (m, 1H), 7.58 (d, 1H,J=8.3 Hz), 7.38 (br s, 1H), 7.42-7.29 (m, 3H), 7.26-7.19 (m, 2H), 7.06(d, 1H, J=7.3 Hz), 6.87 (d, 1H, J=7.8 Hz), 6.58 (d, 1H, J=8.3 Hz) 5.73(s, 2H) and 4.80 (s, 2H), no acid proton detected. IR (KBr, cm⁻¹) 3381,1716, 1637, 1593, 1580, 1499, 1454, 1430, 1330, 1287, 1157, 1093, 776and 720. MS (ES) m/e376 (M+1).

Elemental Analyses for C₂₁H₁₇N₃O₄.HCl: Calculated: C, 61.24; H, 4.41; N,10.20. Found C, 61.11; H, 4.25; N, 10.23.

EXAMPLE 48 Preparation of{9-[(3-Pyridyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid

A. 9-[(3-Pyridyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

A suspension of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (500mg, 2.06 mmol), potassium carbonate (860 mg, 18.8 mmol), and catalyticamount of sodium iodide (ca. 10 mg), was treated with 3-picolyl chloridehydrochloride (500 mg, 3.05 mmol). The reaction was stirred at ambienttemperature 19.5 hours. The mixture was poured into H₂O (100 mL) and themixture extracted four times with ethyl acetate. The combined organiclayers were washed four times with H₂O, once with saturated brine, driedover anhydrous sodium sulfate, filtered, and concentrated. The residuewas purified by flash chromatography on silica gel (elution with 5% MeOHin EtOAc) to afford 550 mg (80%) of the9-[(3-pyridyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one as awhite solid. ¹H NMR (CDCl₃) δ8.48 (d, 1H, J=2.9 Hz), 8.43 (br s, 1H),7.31 (d, 1H, J=7.3 Hz), 7.25-7.09 (m, 5H), 5.29 (s, 2H), 3.97 (s, 3H),2.80 (t, 2H, J=6.1 Hz), 2.49 (t, 2H, J=6.4 Hz), and 2.20-2.12 (m, 2H).IR (CDCl₃, cm⁻¹) 1726, 1656, 1464, 1444, 1434, 1289 and 1119. MS (ES)m/e 335 (M+1).

Elemental Analyses for C₂₀H₁₈N₂O₃: Calculated: C, 71.84; H, 5.43; N,8.38. Found: C, 70.97; H, 5.89; N, 8.53.

B. 9-[(3-Pyridyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of the9-[(3-pyridyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one (456mg, 1.31 mmol) in 3 mL of dioxane was treated with sodium hydride (128mg; 3.20 mmol; 60% dispersion in mineral oil) and the mixture stirredfor 15 minutes. Methyl benzenesulfinate (0.32 mL; 2.45 mmol) was addeddropwise and the reaction heated to 70° C. until tlc analysis indicatedcomplete consumption of starting material (2 hours). The reaction wascooled and diluted with EtOAc (50 mL). The organic layer was separated,washed once with saturated aqueous. NaHCO₃ and once with saturatedbrine, dried over anhydrous sodium sulfate, filtered, and concentrated.The residue was purified by radial chromatography on silica gel (elutionwith 20% then 30% then 50% then 75% ethyl acetate in hexanes) to afford400 mg (92%) of the 9-[(3-pyridyl)methyl]-4-hydroxy-5-carbomethyoxycarbazole as a yellow solid. ¹H NMR (DMSO-d6) δ10.20 (s, 1H), 8.46 (d,1H, J=2.0 Hz), 8.39 (d, 1H, J=4.9 Hz), 7.73 (d, 1H, J=8.3 Hz), 7.43-7.37(m, 2H), 7.28-7.21 (m, 2H), 7.15-7.08 (m, 2H), 6.56 (d, 1H, J=7.8 Hz),5.67 (s, 2H), and 3.80 (s, 3H). IR (KBr, cm⁻¹) 1722, 1585, 1459, 1431,1331, 1321, 1292, 1278, 1136, 781 and 763. MS (ES) m/e 333 (M+1).

Elemental Analyses for C₂₀H₁₆N₂O₃: Calculated: C, 72.28; H, 4.85; N,8.43. Found: C, 72.37; H, 4.67; N, 8.71.

C. 9-[(3-Pyridyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of the 9-[(3-pyridyl)methyl]-4-hydroxy-5-carbomethoxycarbazole (362 mg, 1.09 mmol) in 15 mL THF and 60 mL concentratedaqueous ammonium hydroxide was treated with a stream of NH₃ gas toensure saturation. The reaction vessel was capped and the mixture heatedto 35° C. with stirring until tlc indicated complete consumption ofstarting material (48 hours). The mixture was neutralized to pH 8 with 5N aqueous HCl, saturated with solid sodium chloride, and extracted twicewith THF. The combined organic layers were concentrated. The resultingfoam was taken up in a minimal amount of THF and loaded onto a silicagel column which had been pre equilibrated with EtOAc. Elution withEtOAc afforded 255 mg (74%) of the9-[(3-pyridyl)methyl]-74-hydroxy-5-carbamoyl carbazole as a yellowsolid. ¹H NMR (DMSO-d6) δ10.46 (s, 1H), 8.79 (br s, 1H), 8.43 (d, 1H,J=1.5 Hz), 8.39 (dd, 1H, J=1.4 and 4.9 Hz), 8.35 (br s, 1H), 7.84 (d,1H, J=7.8 Hz), 7.48-7.22 (m, 6H), 7.13 (d, 1H, J=8.3 Hz), 6.58 (d, 1H,J=7.8 Hz), and 5.73 (s, 2H). IR (KBr, cm⁻¹) 3436, 3198 (br), 1629, 1619,1599, 1580, 1564, 1547, 1444, 1433, 1329, 1263, and 776. MS (ES) m/e 318(M+1).

Elemental Analyses for C₁₉H₁₅N₃O₂: Calculated: C, 71.91; H, 4.76; N,13.24. Found: C, 72.10; H, 4.66; N, 13.19.

D. {9-[(3-Pyridyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,methyl ester

A mixture of the 9-[(3-pyridyl)methyl]-4-hydroxy-5-carbamoyl carbazole(225 mg, 0.71 mmol) and Cs₂CO₃ (580 mg; 1.78 mmol) in 5 mL DMF wastreated with methyl bromoacetate (0.09 mL; 0.95 mmol). The reaction wasstirred until tlc analysis indicated complete consumption of startingmaterial (2 hours). The mixture was concentrated and the residue takenup in H₂O (50 mL). The aqueous layer was saturated with solid NaCl andwas extracted five times with THF. The combined organic layers weredried over anhydrous sodium sulfate, filtered and concentrated. Thesolid was triturated with THF then EtOAc to afford 85 mg of the{9-[(2-pyridyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid, methylester as an off white solid. The mother liquors from the triturationswere chromatographed over silica gel using radial chromatography (0.5%then 1% then 2% MeOH in CHCl₃) to afford an additional 80 mg of product(165 mg total; 60%). ¹H NMR (CDCl₃) δ8.53 (br, 2H), 7.42-7.39 (m, 4H),7.20 (d, 1H, J=7.8 Hz), 7.13 (br s, 1H), 6.98 (d, 1H, J=8.3 Hz), 6.56(d, 1H, J=7.9 Hz), 6.17 (br s, 1H), 5.91 (br s, 1H), 5.49 (s, 2H), 4.88(s, 2H), and 3.79 (s, 3H). IR (KBr, cm⁻¹) 3367, 3161, 1760, 1733, 1673,1577, 1501, 1458, 1433, 1418, 1328, 1216, 1202, 1180, 1157, 771, and714. MS (ES) m/e 373 (M+−NH₂) and 390 (M+1).

E. {9-[(3-Pyridyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid,hydrochloride

A slurry of the{9-[(3-pyridyl)methyl]-5-carbamoylcarbazol-4-yl}oxyacetic acid, methylester (85.0 mg, 0.22 mmol) in 1.5 mL of THF and 0.48 mL of MeOH wastreated with 0.48 mL of 1 N aqueous LiOH (0.48 mmol) and the mixturestirred at room temperature for 16 hours. The reaction was concentratedand the residue purified by reverse phase chromatography (Vydac C18column using a 5% to 40% gradient of 0.01% HCl in acetonitrile in 0.01%HCl in H₂O. The fractions containing product were lyopholized to afford63 mg (70%) of {9-[(3-pyridyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid hydrochloride as a white powder. ¹H NMR (DMSO-d6) δ8.62-8.57 (m,2H), 7.77-7.67 (m, 3H), 7.62-7.54 (m, 1H), 7.43-7.28 (m, 4H), 7.09 (d,1H, J=6.3 Hz), 6.61 (d, 1H, J=7.8 Hz), 5.81 (s, 2H) and 4.80 (s, 2H), noacid proton detected. IR (KBr, cm⁻¹) 3424, 3324, 1728, 1671, 1655, 1616,1595, 1579, 1500, 1456, 1421, 1328, 1203, 1156, and 772. MS (ES) m/e 374(M−1), 376 (M+1).

Elemental Analyses for C₂₂H₁₇N₃O₄.HCl: Calculated: C, 61.24; H, 4.41; N,10.20. Found: C, 61.28; H, 4.25; N, 10.28.

EXAMPLE 49 Preparation of[9-benzyl-4-carbamoyl-8-methyl-1,2,3,4-tetrahydrocarbazol-5-yl]oxyaceticacid

A. Preparation of ethyl5-methoxy-8-methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylate

A solution of 1.87 g (13.65 mmol) of 2-methyl-5-methoxyaniline and 3.40g (13.65 mmol) of 2-carboethoxy-6-bromocyclohexanone (Sheehan and Mumaw,JACS, 72, 2127 (1950)) in 10 ml of anhydrous dimethylformamide washeated at 55° C. for 13 hours. The reaction mixture was cooled, pouredinto brine and extracted twice with diethyl ether. The extracts werewashed twice with water and then with brine, dried over magnesiumsulfate and concentrated. The residue was chromatographed on silica gelusing a 10:1 hexane/ethyl acetate mixture to afford 2.88 g (69%) of amixture of diastereomers of N-alkylated material. This mixture wasrefluxed in 90 ml of benzene with 4.69 g (34.4 mmol) of zinc chloridefor 10 hours. The solvent was evaporated and the residue was partitionedbetween 80 ml of 1 N HCl and 80 ml of ethyl acetate and then extractedonce more with ethyl acetate. The organic layers were washed with waterand then brine, dried over magnesium sulfate and concentrated to afford2.60 g (95%) of the subtitled compound. m.p. 119-122° C.

Elemental Analyses Calculated: C, 71.06; H, 7.37; N, 4.87. Found: C,71.35; H, 7.25; N, 4.92.

B. Preparation of ethyl9-benzyl-5-methoxy-8-methyl-1,2,3,4-tetrahydtocarbazole-4-carboxylate

A solution of 1.58 g of ethyl5-methoxy-8-methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylate in 5 ml ofdimethylformamide was added to 0.24 g of sodium hydride (60% in mineraloil) in 5 ml of dimethylformamide and stirred for 30 minutes at roomtemperature. Potassium iodide (90 mg) and 0.75 ml of benzyl bromide werethen added and the reaction was stirred overnight. The reaction mixturewas poured into 75 ml of saturated ammonium chloride solution and thenextracted twice with ether. The extracts were washed with water and thenwith brine, dried over magnesium sulfate and concentrated. The residuewas chromatographed on silica gel using hexane/ethyl acetate mixtures toafford 1.09 g (53%) of the subtitle compound. ESIMS m/e 378 (M⁺+1) NMR(300 MHz, CDCl₃): δ7.28-7.19 (m, 3H); 6.84 (d, J=7.4, 2H); 6.67 (d,J=7.8, 1H); 6.33 (d, J=7.9, 1H); 5.55 and 5.39 (ABq, J=7.8, 2H); 4.17(q+m, J=6.9, 3H); 3.80 (s, 3H); 2.64 (dt, J=16.1, 5.3, 1H); 2.48 (dt,J=16.6, 6.9,1H); 2.41 (s, 3H); 2.05 (m, 2H); 1.95 (m, 1H); 1.83 (m, 1H);1.25 (t, J=7.3, 3H).

C. Preparation of9-benzyl-5-methoxy-8-methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide

A slurry of 0.38 g of ammonium chloride in 15 ml of dry toluene wascooled in an ice bath and treated with 3.5 ml of a 2.0 M solution oftrimethylaluminum in toluene. This mixture was stirred for 1 hour atroom temperature, whereupon 0.762 g (2.02 mmol) of ethyl9-benzyl-5-methoxy-8-methyl-1,2,3,4-tetrahydrocarbazole-4-carboxylate in10 ml of toluene and 1 ml of dichloromethane was added. The mixture washeated to 50° C. overnight, cooled and quenched with 20 ml of aqueous 5%HCl solution. Ethyl acetate extracts (3×100 ml) were washed with waterand then with brine, dried over magnesium sulfate and concentrated toafford 0.693 g (98%) of the subtitle compound. ESIMS m/e 349 (M⁺+1) NMR(300 MHz, CDCl₃): δ7.25 (m, 3H); 6.83 (d, J=7.2, 2H); 6.74 (d, J=7.8,1H); 6.40 (d, J=7.8, 1H); 5.93 (br, 1H); 5.54 and 5.45 (ABq, J=17.7,2H); 5.42 (br, 1H); 4.14 (br, 1H); 3.87 (s, 3H); 2.65 (dt, J=16.4, 4.1,1H); 2.55-2.36 (m,2H); 2.45 (s, 3H); 1.97-1.86 (m, 3H).

D. Preparation of[9-benzyl-4-carbamoyl-8-methyl-1,2,3,4-tetrahydrocarbazol-5-yl[oxyaceticacid methyl ester

A solution of 0.661 g of9-benzyl-5-methoxy-8-methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide in50 ml of dry dichloromethane was cooled to −40° C. and treated dropwisewith 1.8 ml of neat boron tribromide. The reaction was stirred for 2hours at room temperature and quenched by pouring into ice and adding 1N HCl solution. This mixture was extracted twice with dichloromethaneand the organic layers were dried over magnesium sulfate andconcentrated to afford 0.625 g of the demethylated compound.

A solution of 0.55 g of this intermediate in 10 ml of dimethylformamidewas cooled in an ice bath and treated with 1.61 g of cesium carbonateand 0.16 ml of methyl bromoacetate. After stirring for 1 hour at roomtemperature, the reaction mixture was poured into water and extractedtwice with ethyl acetate. The extracts were washed with water and thenwith brine, dried over magnesium sulfate and concentrated. The residuewas chromatographed on silica gel using methanol/0-2% in dichloromethaneto afford 0.46 g (69%) of the subtitle compound. m.p. 209° C.

Elemental Analyses Calculated: C, 70.92; H, 6.45; N, 6.89. Found: C,70.85; H, 6.19; N, 6.98.

E. Preparation of[9-benzyl-4-carbamoyl-8-methyl-1,2,3,4-tetrahydrocarbazol-5-yl]oxyaceticacid]

A slurry of 64 mg (0.157 mmol) of[9-benzyl-4-carbamoyl-8-methyl-1,2,3,4-tetrahydrocarbazol-5-yl]oxyaceticacid methyl ester in 2 ml of tetrahydrofuran and 7 ml of methanol wastreated with 0.5 ml of an aqueous 2 N sodium hydroxide solution andstirred overnight at room temperature. The solvent was evaporated andthe residue was partitioned between ethyl acetate and 1 N HCl solution.After another extraction with ethyl acetate, the extracts were washedwith brine, dried over magnesium sulfate and concentrated to afford aquantitative yield (62 mg) of the title compound. ESIMS m/e 393 (M⁺+1),391 (M⁺−1). NMR (300 MHz, d⁶-DMSO): δ12.98 (br, 1H); 7.30-7.18 (m, 3H);6.82 (d+br, J=7.0, 3H); 6.73 (br, 1H); 6.59 (d, J=7.9,1H); 6.26 (d,J=7.9, 1H); 5.53 and 5.45 (ABq, J=18.1, 2H); 4.62 (s, 2H); 3.96 (br,1H); 2.63 (m, 1H); 2.43 (m, 1H); 2.34 (s, 3H); 2.04 (m, 2H); 1.78 (m,2H).

Elemental Analyses Calculated: C, 70.39; H, 6.16; N, 7.14. Found: C,70.41; H, 6.44; N, 6.88.

EXAMPLE 50 Preparation of[9-benzyl-5-carbamoyl-1-methylcarbazol-4-yl]oxyacetic acid

A. Preparation of 5-carbamoyl-4-methoxy-1-methylcarbazole

A solution of 0.805 g of9-benzyl-5-methoxy-8-methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamide in24 ml of carbitol was treated with 1.1 g of 5% palladium on carbon andwas refluxed for 6 hours open to the air. After cooling, the solutionwas filtered thourough a pad of celite and the pad was washed with ethylacetate. The filtrates were diluted with ether and washed four timeswith water and dried over magnesium sulfate and concentrated. Theresidue was chromatographed on silica gel using methanol/0-4% indichloromethane to afford 0.166 g (28%) of debenzylated carbazole. ESIMSm/e 255 (M⁺+1), 253 (M⁺−1) NMR (300 MHz, CDCl₃): δ8.13 (br, 1H); 7.51(d, J=8.1, 1H); 7.40 (t, J=7.6, 1H); 7.32 (d, J=7.2, 1H); 7.18 (d,J=7.8, 1H); 6.60 (d, J=8.0, 1H); 5.68 (br, 2H); 3.99 (s, 3H); 2.50 (s3H).

B. Preparation of 9-benzyl-5-carbamoyl-4-methoxy-1-methylcarbazole

A solution of 0.148 g of 5-carbamoyl-4-methoxy-1-methylcarbazole in 1.1ml of dimethylformamide was added to 0.026 g of sodium hydride (60% inmineral oil) in 0.4 ml of dimethylformamide and stirred for 60 minutesat room temperature. Benzyl bromide (0.076 ml) was then added and thereaction was stirred overnight. The reaction mixture was poured into 20ml of saturated ammonium chloride solution and then extracted twice withethyl acetate. The extracts were washed with water and then with brine,dried over magnesium sulfate and concentrated. The residue was rinsedwith hexane and dissolved in dichloromethane, filtered and concentratedto afford 0.21 g of the subtitle compound. FDMS m/e 344 (M⁺).

Elemental Analyses Calculated: C, 76.72; H, 5.85; N, 8.13. Found: C,75.20; H, 6.19; N, 7.54.

C. Preparation of [9-benzyl-5-carbamoyl-1-methylcarbazol-4-yl]oxyaceticacid methyl ester]

A solution of 0.23 g of 9-benzyl-5-carbamoyl-4-methoxy-1-methylcarbazolein 4 ml of dimethylformamide was added to a 1 ml solution of sodiumethane thiolate (prepared from 0.116 g of sodium hydride 60% dispersionand 0.22 ml of ethanethiol under nitrogen) and heated at 110° C. for 15hours. The reaction mixture was cooled, poured into 20 ml of 1 N HCl andextracted twice with ethyl acetate. The extracts were washed twice withwater and then with brine, dried over magnesium sulfate andconcentrated. The residue was chromatographed on silica gel usingmethanol/0-1% in dichloromethane to afford 0.146 g (66%) of thedemethylated intermediate. A solution of 0.146 g of this intermediate in1.5 ml of dimethylformamide was added to 0.021 g of sodium hydride (60%in mineral oil) in 0.5 ml of dimethylformamide. After stirring for 10minutes at room temperature, 0.054 ml of methyl bromoacetate was added.After stirring for 5 hours at room temperature, the reaction mixture waspoured into water and extracted twice with ethyl acetate. The extractswere washed with water and then with brine, dried over magnesium sulfateand concentrated. The residue was chromatographed on silica gel usingmethanol/0-2% in dichloromethane to afford 0.10 g (56%) of the subtitlecompound. mp. 228-230° C. ESIMS m/e 403 (M⁺+1)

Elemental Analyses Calculated: C, 71.63; H, 5.51; N, 6.96. Found: C,71.34; H, 5.60; N, 6.70.

D. Preparation of [9-benzyl-5-carbamoyl-1-methylcarbazol-4-yl]oxyaceticacid

A slurry of 32 mg (0.0795 mmol) of[9-benzyl-5-carbamoyl-1-methylcarbazol-4-yl]oxyacetic acid methyl esterin 1 ml of tetrahydrofuran and 3.5 ml of methanol was treated with 0.3ml of an aqueous 2 N sodium hydroxide solution and stirred overnight atroom temperature. The solvent was evaporated and the residue waspartitioned between 1:1 ethyl acetate/tetrahydrofuran and 0.2 N HClsolution. After another extraction with 1:1 ethylacetate/tetrahydrofuran, the extracts were washed with brine, dried overmagnesium sulfate and concentrated to afford (27 mg) of the titlecompound. mp. 253-254° C. ESIMS m/e 389 (M⁺+1), 387 (M⁺−1) NMR (300 MHz,d⁶-DMSO): δ12.83 (br, 1H); 7.75 (br, 1H); 7.53 (d, J=8.2, 1H); 7.41-7.34(m, 2H); 7.28-7.17 (m, 3H); 7.07 (m, 2H); 6.90 (d, J=7.2, 2H); 6.49 (d,J=8.1, 1H); 5.89 (s, 2H); 4.79 (s, 2H); 2.52 (s, 3H).

EXAMPLE 51 Preparation of[9-benzyl-4-carbamoyl-8-fluoro-1,2,3,4-tetrahydrocarbazol-5-yl]oxyaceticacid

A. Preparation of (2-chloro-4-fluorophenyl)-ethyl carbonate

A solution of 19.16 g of 2-chloro-4-fluorophenol in 65.4 ml of 2 Naqueous sodium hydroxide solution was cooled in an ice bath and treateddropwise with 16.3 ml of ethyl chloroformate. After stirring at roomtemperature overnight, the two-phase reaction mixture was diluted with100 ml of water and extracted with 300 ml of a 1:1 pentane/ethermixture. The extract was washed three times with 0.02 N sodium hydroxidesolution, water and then brine. After drying and evaporation, 27.63 g(97%) of the subtitle compound were obtained. NMR (300 MHz, CDCl₃):δ7.23-7.18 (m, 2H); 7.00 (dt, J=8.4, 2.7, 1H); 4.35 (q, J=7.1, 2H); 1.40(t, J=7.1, 3H).

B. Preparation of (2-chloro-4-fluoro-5-nitrophenyl)-ethyl carbonate

A solution of 27.63 g of (2-chloro-4-fluorophenyl)-ethyl carbonate in 60ml of dichloromethane was cooled in an ice bath and treated dropwisewith 31.86 g of a 1:2 mixture of fuming nitric acid (90%) andconcentrated sulfuric acid. The reaction was stirred for 2 hours at roomtemperature and then cooled with ice and treated with another 4.5 g ofthe same nitrating mixture. The reaction was stirred overnight at roomtemperature, poured into 200 ml of ice and water, and extracted twicewith dichloromethane. The extracts were washed with water and then withbrine, dried over magnesium sulfate and concentrated to afford 33.01 g(99%) of the subtitle compound. mp. 50-51° C.

Elemental Analyses Calculated: C, 41.01; H, 2.68; N, 5.31; Cl, 13.45.Found: C, 41.03; H, 2.59; N, 5.38; Cl, 13.71.

C. Preparation of 2-chloro-4-fluoro-5-nitroanisole

A solution of 15.0 g of (2-chloro-4-fluoro-5-nitrophenyl)-ethylcarbonate in 100 ml of dimethyl formamide was treated with 18.6 g ofcesium carbonate, 7.1 ml of iodomethane and 7 ml of methanol and stirredovernight at room temperature. The reaction mixture was poured intowater and extracted twice with ether. The extracts were washed twicewith water and then with brine, dried over magnesium sulfate andconcentrated to afford 11.4 g of the subtitle compound. mp. 69-70° C.Ex. 57, C.

Elemental Analyses Calculated: C, 40.90; H, 2.45; N, 6.81; Cl, 17.25.Found: C, 41.20; H, 2.48; N, 6.70; Cl, 17.44.

D. Preparation of 2-fluoro-5-methoxyaniline

A solution of 5.63 g of 2-chloro-4-fluoro-5-nitroanisole in 90 ml ofethanol and 5 ml of triethylamine was hydrogenated at room temperatureunder 60 pounds per square inch with 1.0 g of 5% palladium on carbon forfour hours. The catalyst was filtered off and the solvent wasevaporated. The residue was slurried in chloroform and filteredthourough a plug of silica gel and then evaporated.

This residue was chromatographed on silica gel using hexane/chloroformmixtures to afford 2.77 g (72%) of the subtitle compound. mp. 253-254°C. NMR (300 MHz, CDCl₃): δ6.88 (dd, J=10.6, 8.9, 1H); 6.32 (dd, J=7.4,3.0, 1H); 6.20 (dt, J=8.9, 3.2,1H); 3.73 (s, 3H); 3.72 (br, 2H).

E. Preparation of N-benzyl-2-fluoro-5-methoxyaniline

This procedure was patterned after that of Tietze and Grote, Chem Ber.126(12), 2733 (1993). A solution of 2.73 g of 2-fluoro-5-methoxyanilineand 2.67 g of benzaldehyde in 48 ml of methanol was treated with 3.43 gof zinc chloride and then cooled in an ice bath. Sodium cyanoborohydride(1.58 g) was added in small poroom temperature ions over 30 minutes andthe reaction was stirred for five hours at room temperature. Afterevaporation of the solvent, the residue was slurried in 40 ml of 1 Nsodium hydroxide solution and then extracted twice with ether. Theextracts were washed with water and then with brine, dried overmagnesium sulfate and concentrated. The residue was recrystallized fromhexane to afford 2.61 g and the mother liquors were chromatographed onsilica gel using 20:1 hexane/ether to afford another 1.4 g of thesubtitle compound (90%). mp. 56-58° C.

Elemental Analyses Calculated: C, 72.71; H, 6.10; N, 6.06. Found: C,72.51; H, 6.06; N, 5.99.

F. Preparation of ethyl 9-benzyl-5-methoxy-8-fluoro-1,2,3,4-tetrahydrocarbazole-4-carboxylate

A solution of 0.62 g of N-benzyl-2-fluoro-5-methoxyaniline in 20 ml ofdry tetrahydrofuran was cooled in an ice bath and treated with 11.3 mlof 0.5 M potassium bis(trimethylsilyl)amide in toluene. After stirringfor 30 minutes, 0.74 g of 2-carboethoxy-6-bromocyclohexanone (Sheehanand Mumaw, JACS, 72, 2127 (1950)) in 4 ml of tetrahydrofuran was addedand the reaction was allowed to warm slowly to room temperature over twohours. The reaction was quenched with saturated ammonium chloridesolution and extracted twice with ether. The extracts were washed withwater and then with brine, dried over magnesium sulfate andconcentrated. This residue was chromatographed on silica gel usinghexane/ether mixtures to afford 0.796 g (74%) of N-alkylatedintermediate diastereomers. This mixture was refluxed in 20 ml ofbenzene with 0.99 g of zinc chloride overnight. The solvent wasevaporated and the residue was partitioned between 25 ml of 1 N HCl and25 ml of ethyl acetate and then extracted once more with ethyl acetate.The organic layers were washed with water and then brine, dried overmagnesium sulfate and concentrated to afford 0.734 g (96%) of thesubtitled compound. ESIMS m/e 382 (M⁺+1)

Elemental Analyses Calculated: C, 72.42; H, 6.34; N, 3.67. Found: C,72.20; H, 6.26; N, 3.70.

G. Preparation of9-benzyl-5-methoxy-8-fluoro-1,2,3,4-tetrahydrocarbazole-4-carboxamide

Ethyl9-benzyl-5-methoxy-8-fluoro-1,2,3,4-tetrahydrocarbazole-4-carboxylate(0.722 g) was treated similarly as described in Example 49, Part C andchromatographed on silica gel using 1% methanol in dichloromethane toafford 0.482 g (72%) of the subtitle compound. ESIMS m/e 353 (M⁺+1)

Elemental Analyses Calculated: C, 71.57; H, 6.01; N, 7.95. Found: C,71.42; H, 5.83; N, 7.75.

H. Preparation of[9-benzyl-4-carbamoyl-8-fluoro-1,2,3,4-tetrahydrocarbazol-5-yl]oxyaceticacid methyl ester

9-Benzyl-5-methoxy-8-fluoro-1,2,3,4-tetrahydrocarbazole-4-carboxamide(0.170 g) was converted similarly as described in Example 49, Part D andchromatographed on silica gel using methanol/0-1% in dichloromethane toafford 85 mg (50%) of the subtitle compound. mp. 183-185° C.

Elemental Analyses Calculated: C, 67.31; H, 5.65; N, 6.82. Found: C,67.58; H, 5.48; N, 6.95.

I. Preparation of[9-benzyl-4-carbamoyl-8-fluoro-1,2,3,4-tetrahydrocarbazol-5-yl]oxyaceticacid

[9-Benzyl-4-carbamoyl-8-fluoro-1,2,3,4-tetrahydrocarbazol-5-yl]oxyaceticacid methyl ester (71 mg) was hydrolyzed similarly as described inExample 50, Part D to afford 65 mg of the title compound. ESIMS m/e 397(M⁺+1), 395 (M⁺−1) NMR (300 MHz, d⁶-DMSO): δ13.03 (br, 1H); 7.31-7.19(m, 3H); 6.97 (d, J=7.4, 2H); 6.95 (br, 1H); 6.70 (d, J=3.8, 1H); 6.67(dd, J=12.4, 3.9, 1H); 6.28 (dd, J=8.5, 2.6, 1H); 5.39 (ABq, 2H); 4.64(s, 2H); 3.92 (br, 1H); 2.71 (m, 1H); 2.44 (m, 1H); 2.02 (m, 2H); 1.76(m, 2H).

EXAMPLE 52 Preparation of[9-benzyl-5-carbamoyl-1-fluorocarbazol-4-yl]oxyacetic acid

A. Preparation of 9-benzyl-5-carbamoyl-4-methoxy-1-fluorocarbazole

A solution of 0.458 g of9-benzyl-5-methoxy-8-fluoro-1,2,3,4-tetrahydrocarbazole-4-carboxamide in13 ml of dry dioxane under nitrogen was treated with 0.59 g of2,3-dichloro-5,6-dicyano-1,4-benzoquinone and refluxed for one hour. Thereaction mixture was cooled and filtered and the precipitate was washedwith 15 ml of dioxane. The filtrate and washing were poured intosaturated sodium bicarbonate solution and extracted three times withethyl acetate. The extracts were washed with saturated sodiumbicarbonate, with water and then with brine; dried over magnesiumsulfate and concentrated. This residue was chromatographed on silica gelusing dichloromethane/0-2% methanol to afford 0.45 g of subtitlecompound. ESIMS m/e 349 (M⁺+1)

Elemental Analyses Calculated: C, 72.42; H, 4.92; N, 8.04. Found: C,72.35; H, 4.81; N, 7.88.

B. Preparation of [9-benzyl-5-carbamoyl-1-fluorocarbazol-4-yl]oxyaceticacid methyl ester

A solution of 0.45 g of 9-benzyl-5-carbamoyl-4-methoxy-1-fluorocarbazolein 25 ml of dichloromethane was cooled in an ice bath treated dropwisewith 12 ml of 1.0 M boron tribromide solution in dichloromethane. Thereaction was allowed to warm to room temperature slowly over 2 hours andthen quenched by pouring into ice and then adding 50 ml of 1 N HCl. Themixture was extracted with dichloromethane (3×200 ml) and the extractswere dried over magnesium sulfate and concentrated to afford 0.35 g(78%) of the demethylated intermediate. This intermediate (0.215 g) wasalkylated and purified similarly to Example GH1, Part D to afford 0.166g (64%) of the subtitle compound. mp. 190-191° C.

Elemental Analyses Calculated: C, 67.97; H, 4.71; N, 6.89. Found: C,67.81; H, 4.94; N, 6.96.

C. Preparation of [9-benzyl-5-carbamoyl-1-fluorocarbazol-4-yl]oxyaceticacid

[9-Benzyl-5-carbamoyl-1-fluorocarbazol-4-yl]oxyacetic acid methyl ester(56 mg) was hydrolyzed and isolated similarly as described in Example50, Part D to afford 54 mg of the title compound. FDMS m/e 392 (M⁺);ESIMS m/e 393 (M⁺+1), 391 (M⁺−1) NMR (300 MHz, d⁶-DMSO): δ12.92 (br,1H); 7.70 (m, 2H); 7.45 (t, J=7.5, 1H); 7.39 (br, 1H); 7.28-7.17 (m,4H); 7.12 (d, J=7.2, 1H); 7.07 (d, J=7.0, 2H); 6.51 (dd, J=8.8, 2.7,1H); 5.77 (s, 2H); 4.80 (s, 2H).

Elemental Analyses Calculated: C, 67.34; H, 4.37; N, 7.14. Found: C,66.92; H, 4.49; N, 6.77.

EXAMPLE 53 Preparation of[9-benzyl-4-carbamoyl-8-chloro-1,2,3,4-tetrahydrocarbazol-5-yl]oxyaceticacid

A. Preparation of ethyl9-benzyl-5-methoxy-8-chloro-1,2,3,4-tetrahydrocarbazole-4-carboxylate

N-benzyl-2-chloro-5-methoxyaniline was prepared similarly to Example 51,Part E. A solution of 2.07 g of N-benzyl-2-chloro-5-methoxyaniline in 60ml of dry tetrahydrofuran was converted similarly to Example GH3, Part Fand chromatographed on silica gel using 15:1 hexane/ethyl acetate toafford 1.65 g (50%) of the subtitle compound. Ex. 59, A. ESIMS m/e 398(M⁺+1) NMR (300 MHz, CDCl₃): δ7.29-7.19 (m, 3H); 6.92 (m, 3H); 6.36 (d,J=8.4, 1H); 5.87 (d, J=17.4, 1H); 5.53 (d, J=17.3, 1H); 4.16 m, 3H);3.81 (s, 3H); 2.66 (dt, J=16.3, 5.4, 1H); 2.49 (dt, J=16.6, 6.6, 1H);2.05 (m, 2H); 1.98-1.79 (m, 2H); 1.25 (t, 3H).

B. Preparation of9-benzyl-5-methoxy-8-chloro-1,2,3,4-tetrahydrocarbazole-4-carboxamide

Ethyl9-benzyl-5-methoxy-8-chloro-1,2,3,4-tetrahydrocarbazole-4-carboxylate(1.65 g) was converted similarly to Example 51, Part G to afford 1.54 g(100%) of the subtitle compound. Ex. 59, B. mp. 205-8° C. ESIMS m/e 369(M⁺+1).

C. Preparation of[9-benzyl-4-carbamoyl-8-chloro-1,2,3,4-tetrahydrocarbazol-5-yl]oxyaceticacid methyl ester

9-Benzyl-5-methoxy-8-chloro-1,2,3,4-tetrahydrocarbazole-4-carboxamide(0.405 g) was converted similarly to Example 51, Part H andchromatographed on silica gel using dichlormethane/0-1.5% methanol toafford 0.248 g (53%) of the subtitle compound. Ex. 59, C. m.p. 185-186°C.

Elemental Analyses Calculated: C, 64.71; H, 5.43; N, 6.56. Found: C,64.98; H, 5.39; N, 6.67.

D. Preparation of[9-benzyl-4-carbamoyl-8-chloro-1,2,3,4-tetrahydrocarbazol-5-yl]oxyaceticacid

[9-Benzyl-4-carbamoyl-8-chloro-1,2,3,4-tetrahydrocarbazol-5-yl]oxyaceticacid methyl ester (58 mg) was hydrolyzed similarly as described inExample 49, Part E to afford 54 mg of the title compound. Ex. 59, D.ESIMS m/e 413 (M⁺+1), 411 (M⁺−1) NMR (300 MHz, d⁶-DMSO): δ13.05 (br,1H); 7.30-7.18 (m, 3H); 6.90 (d+m, J=7.6, 4H); 6.73 (br, 1H); 6.39 (d,J=8.3, 1H); 5.77 and 5.58 (ABq, J=17.5, 2H); 4.67 (s, 2H); 3.95 (br,1H); 2.66 (m, 1H); 2.43 (m, 1H); 2.00 (m, 2H); 1.76 (m, 2H).

Elemental Analyses Calculated: C, 64.00; H, 5.13; N, 6.78; Cl, 8.59.Found: C, 62.82; H, 5.34; N, 6.22; Cl, 7.99.

EXAMPLE 54 Preparation of[9-benzyl-5-carbamoyl-1-chlorocarbazol-4-yl]oxyacetic acid

A. Preparation of 9-benzyl-5-carbamoyl-4-methoxy-1-chlorocarbazole

A solution of 1.0 g of9-benzyl-5-methoxy-8-methyl-1,2,3,4-tetrahydrocarbazole-4-carboxamidewas oxidized similarly to Example 51, Part A and chromatographed onsilica gel using dichloromethane/0-1% methanol to afford 0.66 g (67%) ofthe subtitle compound. FDMS m/e 364 (M⁺)

Elemental Analyses Calculated: C, 69.14; H, 4.70; N, 7.68; Cl, 9.72.Found: C, 69.40; H, 4.64; N, 7.49; Cl, 9.98.

B. Preparation of 5-carbamoyl-4-hydroxy-1-chlorocarbazole

A solution of 0.66 g of 9-benzyl-5-carbamoyl-4-methoxy-1-chlorocarbazolein 40 ml of dichloromethane was cooled in an ice bath treated dropwisewith 14 ml of 1.0 M boron tribromide solution in dichloromethane. Thereaction was allowed to warm to room temperature slowly over 2 hours andthen quenched by pouring into ice and then adding 50 ml of 1 N HCl. Themixture was extracted with dichloromethane (3×200 ml) and the extractswere washed with brine, dried with magnesium sulfate and concentrated.The aqueous layers exhibited a precipitate and was then extracted twicewith ethyl acetate, washed with brine, dried with magnesium sulfate andconcentrated to afford 0.287 g of the subtitle compound. The firstresidue was chromatographed on silica gel using 0.5% methanol indichloromethane to afford another 93 mg of the subtitle compound. (totalyield 80%) ESIMS m/e 259 (M⁺−1) NMR (300 MHz, d⁶-DMSO): δ11.79 (s, 1H);10.76 (s, 1H); 8.87 (br s, 1H); 8.41 (br s, 1H); 7.77 (t, J=4.6, 1H);7.48 (d, J=4.2, 2H); 7.34 (d, J=8.5, 1H); 6.54 (d, J=8.5, 1H).

C. Preparation of [5-carbamoyl-1-chlorocarbazol-4-yl]oxyacetic acidmethyl ester

A solution of 0.28 g of 5-carbamoyl-4-hydroxy-1-chlorocarbazole in 6 mlof tetrahydrofuran was added to 0.043 g of sodium hydride (60% inmineral oil) in 1 ml of tetrahydrofuran and stirred for 60 minutes atroom temperature. Methyl bromoacetate (0.11 ml) was then added and thereaction was stirred overnight. The reaction mixture was poured into 20ml of saturated ammonium chloride solution and then extracted twice withethyl acetate. The extracts were washed with water and then with brine,dried over magnesium sulfate and concentrated. The residue waschromatographed on silica gel eluting with chloroform and then 2:1chloroform/ethyl acetate to afford 0.16 g (45%) of the subtitlecompound. ESIMS m/e 333 (M⁺+1), 335 (M⁺+3), 331 (M⁺−1) NMR (300 MHz,d⁶-DMSO): δ11.73 (s, 1H); 7.56 (d, J=8.1, 1H); 7.50 (br s, 1H);7.43-7.35 (m, 2H); 7.18 (br s, 1H); 7.06 (d, J=7.8, 1H); 6.56 (d, J=8.6,1H); 4.90 (s, 2H); 3.70 (s, 3H).

D. Preparation of [9-benzyl-5-carbamoyl-1-chlorocarbazol-4-yl]oxyaceticacid methyl ester

A solution of 78 mg of [5-carbamoyl-1-chlorocarbazol-4-yl]oxyacetic acidmethyl ester in 0.8 ml of dry dimethylformamide was added to 10 mgsodium hydride (60% in mineral oil) in 0.2 ml of dimethylformamide andstirred for 15 minutes. Benzyl bromide (0.031 ml) was then added and thereaction was stirred overnight. The reaction mixture was poured intowater and acidified with 1 ml of 1 N HCl solution and extracted twicewith ethyl acetate. The extracts were washed with water (3×) and thenwith brine, dried over magnesium sulfate and concentrated. The residuewas chromatographed on silica gel eluting with methanol/0-2% indichloromethane to afford 40 mg of the subtitle compound. ESIMS m/e 423(M⁺+1) 425 (M⁺+3) NMR (300 MHz, CDCl₃): δ7.43-7.22 (m, 7H); 7.06 (d,J=7.3, 2H); 6.51 (d, J=8.6, 1H); 6.05 (s, 2H); 5.80 (br, 2H); 4.88 (s,2H); 3.83 (s, 3H).

E. Preparation of [9-benzyl-5-carbamoyl-1-chlorocarbazol-4-yl]oxyaceticacid

[9-Benzyl-5-carbamoyl-1-chlorocarbazol-4-yl]oxyacetic acid methyl ester(15 mg) was hydrolyzed similarly as described in Example 50, Part D toafford 14 mg of the title compound. mp. 240-2° C. ESIMS m/e 409 (M⁺+1),411 (M⁺+3), 407 (M⁺−1) NMR (300 MHz, d⁶-DMSO): δ12.94 (br, 1H); 7.70(br, 1H); 7.61 (d, J=8.3, 1H); 7.43 (t, J=7.8, 1H); 7.36 (m, 2H);7.28-7.19 (m, 3H); 7.13 (d, J=7.2, 1H); 6.99 (d, J=7.4, 2H); 6.63 (d,J=8.6, 1H); 6.08 (s, 2H); 4.83 (s, 2H).

EXAMPLE 55 Preparation of[9-[(Cyclohexyl)methyl]-5-carbamoylcarbazol-4-yl]oxyacetic acid

A. 9-[(Cyclohexyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

A 0° C. suspension of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one(1.0 g, 4.11 mmol), a catalytic amount of NaI (ca. 10 mg) and K₂CO₃ (1.1g, 8.22 mmol) in 10 mL of DMF was treated with cyclohexylmethyl bromide(0.631 mL, 4.52 mmol). After stirring overnight at ambient temperature,an additional 0.63 mL cyclohexylmethylbromide was added, and theresulting mixture was heated at 60° C. for 3 hours. The mixture waspoured into H₂O (30 mL) and extracted with EtOAc (2×25 mL). The combinedorganic layers were washed with H₂O (4×50 mL), dried over anhydrousNa₂SO₄, filtered and concentrated in vacuo. The residue was purified byradial chromatography on silica gel (elution with a gradient of 20% to40% EtOAc/hexanes) to afford 1.36 g (4.01 mmol; 97%) of9-[(cyclohexyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one as awhite foam. IR (CHCl₃, cm⁻¹) 3011, 2932, 2857, 1725, 1649, 1469, 1446,1288 and 1120. MS (ES) m/e 340 (M+1), 453 (M+AcO⁻). FAB HRMS m/e, Calcdfor C₂₁H₂₆NO₃: 340.1913. Found: 340.1916 (M+1).

Elemental Analyses for C₂₁H₂₅NO₃: Calculated: C, 74.31; H, 7.42; N,4.13. Found: C, 72.65; H, 7.39; N, 4.70.

B. 9-[(Cyclohexyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of9-[(cyclohexyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(1.16 g, 3.42 mmol) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (853mg, 3.76 mmol) in 20 mL of toluene was heated at 80° C. for 3 hours. Themixture was purified directly by column chromatography on silica gel(elution with CH₂Cl₂) to afford 259 mg (0.768 mmol; 22%) of9-[(cyclohexyl)methyl]-4-hydroxy-5-carbomethoxy carbazole as a yellowoil which slowly solidified. MS (ES) m/e 338 (M+1), 336 (M−1).

Elemental Analyses for C₂₁H₂₃NO₃: Calculated: C, 74.75; H, 6.87; N,4.15. Found: C, 74.95; H, 6.99; N, 4.42.

C. 9-[(Cyclohexyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of 9-[(cyclohexyl)methyl]-4-hydroxy-5-carbomethoxy carbazole(205 mg, 0.608 mmol) in 5 mL of THF and 20 mL of concentrated aqueousammonium hydroxide was treated with a stream of NH₃ gas to ensuresaturation. The reaction vessel was capped, and the mixture was heatedat 35° C. with stirring until tlc indicated complete consumption ofstarting material (20 hrs). The THF was evaporated, and the aqueouslayer was filtered. The green solid precipitate was dissolved in THF andpurified by radial chromatography on silica gel (elution with CH₂Cl₂).The resultant foam was triturated with ether to afford 138 mg (70%) ofthe title compound as an off-white solid. IR (KBr, cm⁻¹) 3418, 3200,3131, 1629, 1600, 1443, 1261, 778. 'FAB HRMS m/e, Calcd for C₂₀H₂₃N₂O₂:323.1760. Found: 323.1760 (M+1).

D. [9-[(Cyclohexyl)methyl]-5-carbamoylcarbazol-4-yl]oxyacetic acid,methyl ester

A mixture of 9-[(cyclohexyl)methyl]-4-hydroxy-5-carbamoyl carbazole (60mg, 0.186 mmol) and Cs₂CO₃ (150 mg; 0.460 mmol) in 2 mL of DMF wastreated with methyl bromoacetate (0.023 mL; 0.242 mmol). The reactionwas stirred for 2 hours at ambient temperature, then it was diluted withEtOAc and H₂O (10 mL each). The aqueous layer was saturated with solidNaCl and extracted with EtOAc (2×10 mL). The combined organic layerswere washed with H₂O (2×25 mL), dried over anhydrous Na₂SO₄, filteredand concentrated in vacuo. Purification of the crude residue by flashchromatography on silica gel (elution with a gradient of 0% to 90%EtOAc/hexanes) followed by trituration with Et₂O/EtOAc afforded 45 mg(0.114 mmol; 61%) of title compound as an off-white solid. MS (ES) m/e395 (M+1), 378 (M+H—NH₃), 453 (M+AcO⁻).

Elemental Analyses for C₂₃H₂₆N₂O₄.0.3H₂O: Calculated: C, 69.08; H, 6.71;N, 7.01. Found: C, 69.13; H, 6.71; N, 7.09.

E. [9-[(Cyclohexyl)methyl]-5-carbamoylcarbazol-4-yl]oxyacetic acid

A slurry of [9-[(cyclohexyl)methyl]-5-carbamoylcarbazol-4-yl]oxyaceticacid, methyl ester (20 mg, 0.051 mmol) in 0.3 mL of THF and 0.1 mL ofMeOH was treated with 0.1 mL of 1 N aq LiOH (0.1 mmol), and the mixturestirred at room temperature for 2 h. The reaction was acidified with 0.2N HCl, and the organics were removed in vacuo. The white precipitate wasfiltered away from the aqueous layer and rinsed with Et₂O to afford 16mg (0.042 mmol; 83%) the title acid as a white powder. MS (ES) m/e 381(M+1), 364 (M+H—NH₃), 379 (M−1).

Elemental Analyses for C₂₂H₂₄N₂O₄: Calculated: C, 69.46; H, 6.36; N,7.36. Found: C, 69.34; H, 6.35; N, 7.29.

EXAMPLE 56 Preparation of[9-[(Cyclopentyl)methyl]-5-carbamoylcarbazol-4-yl]oxyacetic acid

A. 9-[(Cyclopentyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one

A suspension of 5-carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one (820 g,3.37 mmol), a catalytic amount of NaI (ca. 10 mg) and K₂CO₃ (930 mg,6.74 mmol) in 6 mL of DMF was treated with cyclopentylmethyl chloride(JOC, 1964, 29, 421-423; 400 mg, 3.37 mmol). After stirring overnight atambient temperature, an additional 800 mg of cyclopentylmethyl chlorideand 1 g of NaI were added, and the resulting mixture was heated at 80°C. overnight. An additional 800 mg of cyclopentylmethyl chloride and 2.2g of Cs₂CO₃ were added, and the reaction mixture was heated at 80° C.for 24 h. An additional 1.6 g of cyclopentylmethyl chloride was added,and the reaction mixture was heated at 80° C. for 3 d The mixture waspoured into H₂O (30 mL) and extracted with EtOAc (3×10 mL). The combinedorganic layers were dried over anhydrous Na₂SO₄, filtered, andconcentrated in vacuo. The residue was purified by radial chromatographyon silica gel (elution with gradient of 10% to 40% EtOAc/hexanes) toafford 775 mg (2.38 mmol; 71%) of9-[(cyclopentyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one asa brown foam. MS (ES) m/e 326 (M+1), 384 (M+AcO⁻).

Elemental Analyses for C₂₀H₂₃NO₃: Calculated: C, 73.82; H, 7.12; N,4.30. Found: C, 74.12; H, 7.21; N, 4.45.

B. 9-[(Cyclopentyl)methyl]-4-hydroxy-5-carbomethoxy carbazole

A solution of9-[(cyclopentyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one(730 mg, 2.24 mmol) and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (560mg, 2.47 mmol) in 20 mL of toluene was heated at 80° C. for 3 hours. Themixture was purified directly by column chromatography on silica gel(elution with CH₂Cl₂) to afford 140 mg (0.433 mmol; 19%) of9-[(cyclopentyl)methyl]-4-hydroxy-5-carbomethoxy carbazole as a yellowoil which slowly solidified. MS (ES) m/e 324 (M+1), 322 (M−1).

Elemental Analyses for C₂₀H₂₁NO₃.0.3H₂O: Calculated: C, 73.06; H, 6.62;N, 4.26. Found: C, 73.19; H, 6.44; N, 4.40.

C. 9-[(Cyclopentyl)methyl]-4-hydroxy-5-carbamoyl carbazole

A solution of 9-[(cyclopentyl)methyl]-4-hydroxy-5-carbomethoxy carbazole(110 mg, 0.34 mmol) in 3 mL of THF and 20 mL of concentrated aqueousammonium hydroxide was treated with a stream of NH₃ gas to ensuresaturation. The reaction vessel was capped, and the mixture heated to35° C. with stirring until tlc indicated complete consumption ofstarting material (20 h). The THF was evaporated, and the aqueous layerwas filtered. The resultant solid was triturated with ether to afford 50mg (0.162; 48%) of the title compound as a greenish-white solid. IR(KBr, cm⁻¹) 3416, 3199, 3126, 1630, 1599. 1442, 1262, 778. 'FAB HRMSm/e, Calcd for C₂₀H₂₁N₂O₂: 309.1603. Found: 309.1607 (M+1).

D. [9-[(Cyclopentyl)methyl]-5-carbamoylcarbazol-4-yl]oxyacetic acid,methyl ester

A mixture of 9-[(cyclopentyl)methyl]-4-hydroxy-5-carbamoyl carbazole (45mg, 0.146 mmol) and Cs₂CO₃ (120 mg; 0.365 mmol) in 2 mL of DMF wastreated with methyl bromoacetate (0.018 mL; 0.19 mmol). The reaction wasstirred for 2 hours at ambient temperature, then it was diluted withEtOAc and H₂O (10 mL each). The aqueous layer was saturated with solidNaCl extracted with EtOAc (2×10 mL). The combined organic layers werewashed with H₂O (2×25 mL), dried over anhydrous Na₂SO₄, filtered andconcentrated in vacuo. Purification of the crude residue by flashchromatography on silica gel (elution with a gradient of 0% to 100%EtOAc/hexanes) followed by trituration with Et₂O/EtOAc afforded 26 mg(0.0683 mmol; 47%) of title compound as a tan solid. MS (ES) m/e 381(M+1), 364 (M+H—NH₃), 439 (M+AcO⁻).

Elemental Analyses for C₂₃H₂₆N₂O₄.0.1H₂O: Calculated: C, 69.13; H, 6.38;N, 7.33. Found: C, 68.99; H, 6.39; N, 7.41.

E. [9-[(Cyclopentyl)methyl]-5-carbamoylcarbazol-4-yl]oxyacetic acid

A slurry of [9-[(cyclopentyl)methyl]-5-carbamoylcarbazol-4-yl}oxyaceticacid, methyl ester (20 mg, 0.065 mmol) in 0.3 mL of THF and 0.1 mL ofMeOH was treated with 0.1 mL of 1 N aq LiOH (0.1 mmol), and the mixturestirred at room temperature for 2 hours. The reaction was acidified with0.2 N HCl, and the organics were removed in vacuo. The white precipitatewas filtered away from the aqueous layer and rinsed with Et₂O to afford15 mg (0.0409 mmol; 63%) the title acid as a white powder. MS (ES) m/e367 (M+1), 350 (M+H—NH₃), 365 (M−1).

Elemental Analyses for C₂₁H₂₂N₂O₄.0.3H₂O: Calculated: C, 67.84; H, 6.13;N, 7.53. Found: C, 67.73; H, 5.97; N, 7.70.

EXAMPLE 57[5-carbamoyl-9-(phenylmethyl)-2-(2-thienyl)carbazol-4-yl]oxyacetic acid

A. Preparation of3-(2-bromo-3-carbomethoxyanilino)-5-(2-thienyl)cyclohex-2-en-1-one

Prepared in 59% yield by the method of Example 17C. ¹H-NMR (CDCl₃):δ2.63 (dd, J=16.5, 118. Hz, 1H), 2.78-2.96 (m, 3H), 3.71-3.80 (m, 1H),3.94 (s, 3H), 5.61 (s, 1H), 6.23 (br s, 1H), 6.93 (d, J=3.5 Hz, 1H),6.97-6.99 (m, 1H), 7.21 (d, J=5.2 Hz, 1H), 7.34 (br t, J=7.8 Hz, 1H),7.55 (d, J=7.8 Hz, 2H).

B. Preparation of5-carbomethoxy-1,2-dihydro-2-(2-thienyl)-9H-carbazol-4(3H)-one

Prepared in 85% yield by the method of Example 17D. ¹H-NMR CDCl₃): δ2.73(dd, J=16.3, 11.8 Hz, 1H), 2.91 (dd, J=16.4, 4.0 Hz, 1H), 3.03 (dd,J=16.6, 10.8 Hz, 1H), 3.24 (dd, J=16.6, 4.5 Hz, 1H), 3.75-3.78 (m, 1H),4.03 (s, 3H), 6.88 (br s, 1H), 6.93-6.96 (m, 1H), 7.17 (d, J=5.0 Hz,1H), 7.22-7.26 (m, 1H), 7.36 (d, J=7.4 Hz, 1H), 7.40 (d, J=8.0 Hz,1H),9.17 (br s, 1H).

C. Preparation of5-carbomethoxy-1,2-dihydro-9-(phenylmethyl)-2-(2-thienyl)carbazol-4(3H)-one

Prepared in 88% yield by the method of Example 17E. ¹H-NMR (CDCl₃):δ2.84 (dd, J=16.5, 11.6 Hz, 1H), 2.97-3.10 (m, 2H), 3.34 (dd, J=16.5,4.5 Hz, 1H), 3.89-3.96 (m, 1H), 4.06 (s, 3H), 5.38 (s, 2H), 6.89-7.00(m, 4H), 7.18 (d, J=5.3 Hz, 1H), 7.25-7.41 (m, 6H).

D. Preparation of5-carbomethoxy-4-hydroxy-9-(phenylmethyl)-2-(2-thienyl)carbazole

Prepared in 76% yield by the method (b) of Example 17F. ¹H-NMR (CDCl₃):δ4.11 (s, 3H), 5.55 (s, 2H), 7.07-7.12 (m, 3H), 7.16 (s, 2H), 7.24-7.30(m, 4H), 7.37-7.42 (m, 2H), 7.56 (d, J=8.1 Hz, 1H), 8.01 (d, J=7.6 Hz,1H).

E. Preparation of5-carbamoyl-4-hydroxy-9-(phenylmethyl)-2-(2-thienyl)carbazole

Prepared in 85% yield by the method of Example 17G. ¹H-NMR (DMSO-d₆):δ5.73 (s, 2H), 6.87 (s, 1H), 7.08-7.26 (m, 6H), 7.41-7.56 (m, 5H), 7.76(br t, J=4.5 Hz, 1H), 8.39 (s, 1H), 8.83 (s, 1H), 10.76 (s, 1H).

F. Preparation of[5-carbamoyl-9-(phenylmethyl)-2-(2-thienyl)carbazol-4-yl]oxyacetic acid,methyl ester

Prepared in 92% yield by the method of Example 17H. ¹H-NMR (DMSO-d₆):δ3.70 (s, 3H), 4.99 (s, 2H), 5.71 (s, 2H), 6.85 (s, 1H), 7.04 (d, J=7.2Hz, 1H), 7.11-7.26 (m, 7H), 7.35 (br t, J=7.7 Hz, 1H), 7.50-7.57 (m,5H).

G. Preparation of[5-carbamoyl-9-(phenylmethyl)-2-(2-thienyl)carbazol-4-yl]oxyacetic acid

Prepared in 98% yield by the method of Example 17I. ¹H-NMR (DMSO-d₆):δ4.90 (s, 2H), 5.72 (s, 2H), 6.85 (s, 1H), 7.04-7.26 (m, 7H), 7.33-7.38(m, 2H), 7.50-7.59 (m, 4H), 7.71 (s, 1H), 12.99 (br s, 1H).

EXAMPLE 58[5-carbamoyl-9-(phenylmethyl)-2-[[(propen-3-yl)oxy]methyl]carbazol-4-yl]oxyaceticacid

A. Preparation of5-carbomethoxy-1,2-dihydro-9-(phenylmethyl)-2-[[(propen-3-yl)oxy]methyl]carbazol-4(3H)-one

Sodium hydride (63.4 mg, 1.58 mmol) was added to a stirred anhydrous DMF(7 mL) solution containing the compound of Example 19C (480 mg, 1.32mmol) and allyl bromide (0.172 mL, 1.98 mmol) under a nitrogenatmosphere. The resultant solution was stirred at ambient temperaturefor 2 hours. Then the mixture was treated with two drops of acetic acidbefore it was concentrated in vacuo. The residue was subject tochromatography on silica (gradient 30-70% ethyl acetate in hexane) toprovide the subtitled compound (395 mg, 74%) as a white solid. IR (KBr)1726, 1654 cm⁻¹; ¹H-NMR (CDCl₃): δ2.40 (dd, J=16.5, 11.1 Hz, 1H),2.57-2.78 (m, 3H), 3.01-3.08 (m, 1H), 3.41 (dd, J=9.2, 6.9 Hz, 1H), 3.49(dd, J=9.2, 4.3 Hz, 1H), 3.95 (d, J=5.4 Hz, 2H, —CH₂O—), 4.04 (s, 3H,—OCH₃), 5.14-5.27 (m, 2H, ═CH₂), 5.32 (s, 2H, —NCH₂—), 5.80-5.92 (m, 1H,—CH═), 6.97-7.02 (m, 2H), 7.20-7.39 (m, 6H); ESIMS m/e 404 (M⁺+1);

Elemental Analyses for C₂₅H₂₅NO₄: Calculated: C, 74.42; H, 6.25. Found:C, 74.59; H, 6.07.

B. Preparation of5-carbomethoxy-4-hydroxy-9-(phenylmethyl)-2-[[(propen-3-yl)oxy]methyl]carbazole

Prepared in a 78% yield by the method (b) of Example 17F. IR (CHCl₃)3200 (br), 1687 cm⁻¹; ¹H-NMR (CDCl₃): δ4.04 (d, J=5.7 Hz, 2H, —CH₂O—),4.11 (s, 3H, —OCH₃), 4.63 (s, 2H, —OCH₂—), 5.15-5.31 (m, 2H, ═CH₂), 5.55(s, 2H, —NCH₂—), 5.88-6.02 (m, 1H, —CH═), 6.81 (s, 1H), 6.99 (s, 1H),7.05-7.09 (m, 2H), 7.22-7.30 (m, 3H), 7.40 (br t, J=8.0 Hz, 1H), 7.58(d, J=8.0 Hz, 1H), 8.00 (d, J=8.0 Hz, 1H), 10.48 (s, 1H, —OH); ESIMS m/e402 (M⁺+1);

Elemental Analyses for C₂₅H₂₃NO₄: Calculated: C, 74.80; H, 5.77. Found:C, 75.08; H, 5.78.

C. Preparation of5-carbamoyl-4-hydroxy-9-(phenylmethyl)-2-[[(propen-3-yl)oxy]methyl]carbazole

Prepared in a 75% yield by the method of Example 17G. IR (KBr) 3420,3203 (br), 3121, 1632, 1601 cm⁻¹; ¹H-NMR (DMSO-d₆): δ3.95 (d, J=5.3 Hz,2H, —CH₂O—), 4.50 (s, 2H, —OCH₂—), 5.08-5.25 (m, 2H, ═CH₂), 5.65 (s, 2H,—NCH₂—), 5.83-5.93 (m, 1H, —CH═), 6.54 (s, 1H), 7.02-7.05 (m, 3H),7.14-7.25 (m, 3H), 7.39-7.45 (m, 2H), 7.73-7.77 (m, 1H), 8.34 (s, 1H,—NH),8.79 (s, 1H, —NH), 10.53 (s, 1H, —OH); ESIMS m/e 387 (M⁺+1);

Elemental Analyses for C₂₄H₂₂N₂O₃: Calculated: C, 74.59; H, 5.74. Found:C, 74.85; H, 5.93.

D. Preparation of[5-carbamoyl-9-(phenylmethyl)-2-[[(propen-3-yl)oxy]methyl]carbazol-4-yl]oxyaceticacid, methyl ester

Prepared in a 90% yield by the method of Example 17H. IR (KBr) 3360,3167, 1758, 1639 cm⁻¹; ¹H-NMR (CDCl₃): δ3.83 (s, 3H, —OCH₃), 4.00 (d,J=5.7 Hz, 2H, —CH₂O—), 4.62 (s, 2H, —OCH₂—), 4.91 (s, 2H, —OCH₂—),5.16-5.30 (m, 2H, ═CH₂), 5.52 (s, 2H, —NCH₂—), 5.88-6.00 (m, 1H, —CH═),6.05 (br s, 2H, —NH₂), 6.59 (s, 1H), 7.05 (s, 1H), 7.06-7.10 (m, 2H),7.22-7.41 (m, 6H); ESIMS m/e 459 (M⁺+1).

E. Preparation of[5-carbamoyl-9-(phenylmethyl)-2-[[(propen-3-yl)oxy]methyl]carbazol-4-yl]oxyaceticacid

Prepared in a 89% yield by the method of Example 17I. IR (KBr) 3453,3421, 3332, 3220, 2580 (br), 1740, 1724, 1631 cm⁻¹; ¹H-NMR (DMSO-d₆):δ3.95 (d, J=4.7 Hz, 2H, —CH₂O—), 4.53 (s, 2H, —OCH₂—), 4.79 (s, 2H,—OCH₂—), 5.10-5.26 (m, 2H, ═CH₂), 5.64 (s, 2H, —NCH₂—), 5.80-6.00 (m,1H, —CH═), 6.56 (s, 1H), 7.04-7.40 (m, 9H), 7.57 (d, J=8.1 Hz, 1H), 7.70(s, 1H, —NH), 12.94 (br s, 1H, —CO₂H); ESIMS m/e 445 (M⁺+1);

Elemental Analyses for C₂₆H₂₄N₂O₅: Calculated: C, 70.26; H, 5.44. Found:C, 70.00; H, 5.42.

EXAMPLE 59[5-carbamoyl-9-(phenylmethyl)-2-[(propyloxy)methyl]carbazol-4-yl]oxyaceticacid

A. Preparation of[5-carbamoyl-9-(phenylmethyl)-2-[(propyloxy)methyl]carbazol-4-yl]oxyaceticacid, methyl ester

Platinum oxide (30 mg) was added to a stirred THF (30 mL) solutioncontaining the compound of Example IID (120 mg, 0.262 mmol) under anitrogen atmosphere. The mixture was then stirred under a hydrogenatmosphere for 30 minutes. After filtration and concentration, theresidue was chromatographed on silica (gradient 0-6% methanol inmethylene chloride) to afford the subtitled compound (117 mg, 97%) as awhite solid. IR (KBr) 3364, 3166, 1758, 1742, 1642 cm⁻¹; ¹H-NMR (CDCl₃):δ0.91 (t, J=7.4 Hz, 3H, —CH₃), 1.57-1.65 (m, 2H), 3.40 (t, J=6.6 Hz, 2H,—OCH₂—), 3.83 (s, 3H, —OCH₃), 4.60 (s, 2H, —OCH₂—), 4.91 (s, 2H,—OCH₂—), 5.52 (s, 2H, —NCH₂—), 5.95 (br s, 1H, —NH), 6.06 (br s, 1H,—NH), 6.58 (s, 1H), 7.04 (s, 1H), 7.07-7.10 (m, 2H), 7.20-7.41 (m, 6H);ESIMS m/e 461 (M⁺+1).

B. Preparation of[5-carbamoyl-9-(phenylmethyl)-2-[(propyloxy)methyl]carbazol-4-yl]oxyaceticacid

Prepared in a 99% yield by the method of Example 17I. IR (KBr) 3458,3413, 3332, 3232, 2500 (br), 1716, 1627 cm⁻¹; ¹H-NMR (DMSO-d₆): δ0.82(t, J=7.3 Hz, 3H, —CH₃), 1.45-1.53 (m, 2H), 3.33 (t, J=6.3 Hz, 2H,—OCH₂—), 4.51 (s, 2H, —CH₂O—), 4.78 (s, 2H, —OCH₂—), 5.64 (s, 2H,—NCH₂—), 6.54 (s, 1H), 7.03-7.39 (m, 9H), 7.57 (d, J=8.2 Hz, 1H), 7.70(s, 1H, —NH), 12.93 (s, 1H, —CO₂H); ESIMS m/e 447 (M⁺+1);

Elemental Analyses for C₂₆H₂₆N₂O₅: Calculated: C, 69.94; H, 5.87. Found:C, 70.00; H, 5.88.

EXAMPLE 60 Preparation of9-benzyl-7-methoxy-5-((carboxamidomethyl)oxy)-1,2,3,4-tetrahydrocarbazole-4-carboxamide

To 195 mg (0.5 mmol) of9-benzyl-7-methoxy-5-cyanomethyloxy-1,2,3,4-tetrahydrocarbazole-4-carboxamidein 3 ml CH₂Cl₂ was added 34 mg (0.1 mmol) tetrabutylammonium sulfate.After cooling to 0° C., 0.25 ml 30% H₂O₂ and 3 ml 20% NaOH were added.The reaction was allowed to warm to room temperature and stirred for 18h. The mixture was diluted with CH₂Cl₂, washed with water, washed withbrine, dried over sodium sulfate, and evaporated in vacuo. The residuewas chromatographed on silica gel eluting with a gradient of 2 to 10%isopropanol in methylene chloride to give the titled product (36.7 mg19%). An analytical sample was crystallized from methanol. MS (ES+) 408

Elemental analysis for C₂₃H₂₅N₃O₄: Calculated: C, 67.80; H, 6.18; N,10.31. Theory: C, 67.91; H, 6.17; N, 10.44.

EXAMPLE 61 Preparation of9-benzyl-7-methoxy-5-cyanomethyloxy-carbazole-4-carboxamide

To a stirred solution of9-benzyl-5-hydroxy-7-methoxycarbazole-4-carboxamide (0.75 g, 2.17 mmol)in DMF (76 ml) and THF (16 ml) and added 60% NaH (0.11 g, 2.71 mmol).After 15 min bromoacetonitrile (0.20 ml, 2.93 mmol) was added and thereaction was allowed to stir for 4 h. The reaction was diluted withEtOAc, extracted with water, then brine, dried (Na₂SO₄), andchromatographed on silica gel using a CH₂Cl₂-EtOAc-methanol gradient togive the titled compound (0.52 g, 63%). MS (ES+) 386

Elemental analysis for C₂₃H₁₉N₃O₃: Calculated: C, 71.68; H, 4.97; N,10.90. Theory: C, 71.67; H, 4.72; N, 10.65.

EXAMPLE 62 424805 Preparation of9-benzyl-7-methoxy-5-((1H-tetrazol-5-yl-methyl)oxy)-carbazole-4-carboxamide

0.20 gram (0.52 mmol) of9-benzyl-7-methoxy-5-cyanomethyloxy-carbazole-4-carboxamide was heatedwith 2.2 ml tri-n-butyl tin hydride at 95° C. for 3.5 h. The reactionwas then added to a mixture of 56 ml acetonitrile, 11 mltetrahydrofuran, and 22 ml acetic acid and stirred for 2 h. The mixturewas extracted 4 times with hexane and the residue evaporated in vacuo.The residue was chromatographed on silica gel using a CH₂Cl₂-methanolgradient, then 1% HOAc in EtOAc. Crystallization from acetone and hexaneafforded the titled compound (0.047 g, 21%). MS (ES+) 412, 429

Elemental analysis for C₂₃H₂₄N₆O₃: Calculated: C, 64.48; H, 4.71; N,19.61. Theory: C, 64.58; H, 4.67; N, 19.68.

EXAMPLE 63 Preparation of9-benzyl-7-methoxy-5-((carboxamidomethyl)oxy)-carbazole-4-carboxamide

To 200 mg (0.52 mmol) of9-benzyl-7-methoxy-5-cyanomethyloxy-carbazole-4-carboxamide in 6 mlCH₂Cl₂ was added 35 mg (0.1 mmol) tetrabutylammonium sulfate. Aftercooling to 0° C., 0.26 ml 30% H₂O₂ and 6 ml 20% NaOH, were added. Thereaction was allowed to warm to room temperature and stirred for 18 h.The mixture was diluted with CH₂Cl₂ and methanol, washed with water,washed with brine, dried over sodium sulfate, and evaporated in vacuo.The residue was chromatographed on silica gel using a CH₂Cl₂-ethanolgradient. Crystallization from methanol afforded the titled compound(22.5 mg, 11%). MS (FD) 403

Elemental analysis for C₂₃H₂₁N₃O₄: Calculated: C, 68.47; H, 5.25; N,10.42. Theory: C, 68.65; H, 4.99; N, 10.40.

EXAMPLE 64 Preparation of[9-Benzyl-4-carbamoyl-1,2,3,4-tetrahydrocarbaole-5-yl]oxyacetic acid

A. 9-Benzyl-4-carboxy-5-methoxy-1,2,3,4-tetrahydrocarbazole, Ethyl Ester

A solution of 1.50 g (4.02 mmol) of9-Benzyl-4-carboxy-8-chloro-5-methoxy-1,2,3,4-tetrahydrocarbazole, ethylester and 0.45 g (4.40 mmol) of Et₃N in 25 mL of EtOH was treated with0.24 g of 5% Pd—C and the mixture hydrogenated at 60 psi for 16 hrs. Thereaction was filtered and concentrated in vacuo to give 1.40 g of a tansolid. ¹H NMR (CDCl₃): δ7.30-7.19 (m, 3H), 7.03-6.95 (m, 3H), 6.80 (d,1H, J=8.1 Hz), 6.44 (d, 1H, J=7.7 Hz), 5.22 (d, 2H, J=5.9 Hz), 4.22-4.11(m, 3H), 3.82 (s, 3H), 2.75-2.64 (m, 1H), 2.59-2.48 (m, 1H), 2.11-1.64(m, 4H), and 1.25 (t, 3H, J=7.0 Hz). IR (CHCl₃) 2959, 1725, 1499, 1453,1260, 1178, 1128 cm−1;

Elemental Analysis for C₂₃H₂₅NO₃: Calculated: 363.1836. Found: 363.1834.

B. 9-Benzyl-4-carbamoyl-5-hydroxy-1,2,3,4-tetrahydrocarbazole

A 0° C. solution of 1.00 g (2.80 mmol)9-benzyl-4-carboxy-5-methoxy-1,2,3,4-tetrahydrocarbazole, ethyl ester in15 mL of CH₂Cl₂ was treated with 22.40 mL (22.40 mmol; 1M in CH₂Cl₂) ofBBr₃. The cold bath was removed and the reaction stirred until tlcanalysis (10% EtOAc in hexanes) indicated complete consumption ofstarting material (1.5 hrs). The reaction was cooled to 0° C. and wasquenched with 5.0 mL of MeOH. The mixture was stirred at ambienttemperature for 18 hrs and was concentrated in vacuo. The black oil wastaken up in 200 mL of CH₂Cl₂ and the solution washed with H2O (100 mL)and sat'd aq NaHCO₃ (100 mL). Evaporation of the solvent in vacuoafforded 700 mg of a black oil. Purification by radial chromatography(10% EtOAc in hexanes) afforded 400 mg of9-benzyl-4-carboxy-5-hydroxy-1,2,3,4-tetrahydrocarbazole, ethyl esterwhich was taken on directly to the next reaction.

The phenol was taken up in 40 ml of THF and the solution treated with 10mL of NH₄OH. The reaction vessel was capped and the mixture stirredvigorously for 13 days. The reaction was poured into H₂O and the mixtureextracted with EtOAc (3×150 mL). The combined organic layers were dried(Na₂SO₄), filtered and concentrated in vacuo to give 300 mg of a brownfoam. Radial chromatography (3% MeOH in CH₂Cl₂) afforded 50 mg ofstarting phenol and 80 mg (0.03 mmol; 22%) of9-benzyl-4-carbamoyl-5-hydroxy-1,2,3,4-tetrahydrocarbazole. ¹H NMR(CDCl₃): δ7.33-7.24 (m, 3H), 7.06-6.97 (m, 3H), 6.81 (d, 1H, J=8.1 Hz),6.56 (d, 1H, J=7.5 Hz), 5.22 (d, 2H, J=2.2 Hz), 4.20-4.15 (m, 1H),2.78-2.67 (m, 1H), 2.63-2.51 (m, 1H), 2.35-2.27 (m, 1H), and 2.09-1.91(m, 3H), no phenol proton detected. IR (CHCl3) 3007, 1667, 1586, 1567,1496, 1266 cm−1;

Elemental Analysis for C₂₀H₂₁N₂O₂: Calculated: 321.1603. Found:321.1607.

C. [9-Benzyl-4-carbamoyl-1,2,3,4-tetrahydrocarbaole-5-yl]oxyacetic acid,Methyl Ester

A solution of 80 mg (0.25 mmol) of9-benzyl-4-carbamoyl-5-hydroxy-1,2,3,4-tetrahydrocarbazole in 2.5 mL ofDMF was treated with 61 mg (0.30 mmol) of Cs₂CO₃ followed by 26 mg (0.30mmol) of methyl bromoacetate. The mixture was stirred at roomtemperature until tlc indicated complete consumption of startingmaterial (2 hrs). The reaction was diluted with H₂O (10 mL) and wasextracted with EtOAc (3×10 mL). The combined organic layers were washedwith H₂O (3×20 mL), dried over Na₂SO₄, filtered, and concentrated invacuo. The residue was purified by radial chromatography (SiO₂; 2.5%MeOH in CH₂Cl₂) to afford 50 mg (0.13 mmol; 51%) of[9-benzyl-4-carbamoyl-1,2,3,4-tetrahydrocarbaole-5-yl]oxyacetic acid,methyl ester as an oil. ¹H NMR (CDCl₃): δ7.33-7.21 (m, 3H), 7.05-6.98(m, 3H), 6.98 (d, 1H, J=7.4 Hz), 6.46 (br s, 1H), 6.37 (d, 1H, J=7.7Hz), 5.52 (br s, 1H), 5.23 (d, 1H, J=4.9 Hz) 4.79-4.70 (m, 2H),4.20-4.15 (m, 1H), 3.81 (s, 3H), 2.79-2.69 (m, 1H), 2.63-2.49 (m, 1H),2.43-2.35 (m, 1H), 2.25-2.09 (m, 1H), and 1.99-1.78 (m, 2H). IR (CHCl₃,cm⁻¹) 1759, 1670, 1497, 1453, 1440, and 1132. MS (ES) m/e 393 (M+1).

Elemental Analysis for C₂₃H₂₄N₂O₄: Calculated: C, 70.39; H, 6.16; N,7.14. Found: C, 70.29; H, 6.31; N, 7.08.

D. [9-Benzyl-4-carbamoyl-1,2,3,4-tetrahydrocarbaole-5-yl]oxyacetic acid

A solution of 30 mg (0.076 mmol) of[9-benzyl-4-carbamoyl-1,2,3,4-tetrahydrocarbaole-5-yl]oxyacetic acid,methyl ester in 1.0 mL of THF and 1.0 mL of MeOH was treated with 0.2 mLof 1 N aq LiOH (0.2 mmol). The mixture was stirred for 18 hrs. Anadditional 0.2 mL of 1 N aq LiOH (0.2 mmol) was added and stirringcontinued. After 1 hr, the mixture was concentrated in vacuo. Theresidue was dissolved in 2.0 mL of H₂O and the solution acidified with0.2 N aq HCl. The solid was filtered and dried to afford 25 mg of[9-benzyl-4-carbamoyl-1,2,3,4-tetrahydrocarbaole-5-yl]oxyacetic acid asa white solid. ¹H NMR (DMSO-d₆) δ7.36-7.12 (m, 5H), 7.05-6.83 (m, 5H),6.71 (br s, 1H), 6.35 (d, 1H, J=7.6 Hz), 5.27 (s, 2H), 4.64 (s, 2H),3.93-3.84 (m, 2H), 2.75-2.64 (m, 1H), 2.16-1.95 (m, 2H), 1.81-1.64 (m,2H) and 1 proton masked by H₂O peak between 2.58-2.40. IR (KBr, cm⁻¹)3435, 2936, 1722, 1644, 1586, 1566, 1495, 1451, 1354, 1227, 1134, 730,716, and 698. MS (ES) m/e 377 (M−1) and 379 (M+1).

Elemental Analysis for C₂₂H₂₂N₂O₄: Calculated: C, 69.83; H, 5.86; N,7.40. Found: C, 70.11; H, 5.76; N, 7.12.

EXAMPLE 65 Preparation of(R,S)-(9-Benzyl-4-carbamoyl-1-oxo-3-thia-1,2,3,4-tetrahydrocarbazol-5-yl)oxyaceticAcid

A. 1-Benzyl-4-methoxyindole

NaH (7.7 g, 191.7 mmol) was added portionwise to a 0° C. solution of4-methoxyindole (21.7 g, 147 mmol) in 750 mL of anhydrous DMF. After 15min, the slurry was treated with benzyl bromide (17.5 mL, 147 mmol). Thereaction mixture was allowed to warm to ambient temperature and stirovernight. The reaction mixture was poured into 1 L of H₂O. The layerswere separated, and the aqueous phase was extracted with EtOAc (2×200mL). The combined organic layers were washed with H₂O (4×500 mL), driedover Na₂SO₄, filtered and concentrated in vacuo. The crude residue waspurified by flash chromatography (SiO₂; hexanes) to give 32.9 g (138.6mmol; 94%) of the title compound as a white solid. Electrospray MS 238(M+1);

Elemental Analysis for C₁₆H₁₅NO: Calculated: C, 80.98; H, 6.37; N, 5.90.Found: C, 81.20; H, 6.09; N, 5.83.

B. Methyl (1-Benzyl-4-methoxyindol-3-yl)oxoacetate

A 0° C. solution of 1-benzyl-4-methoxyindole (31.9 g, 134.4 mmol) in 500mL of CH₂Cl₂ and pyridine (21.7 mL, 268.8 mmol) was treated with methyloxalyl chloride (13.6 mL, 147.9 mmol). After 1.5 h at 0° C., 500 mL ofsaturated NaHCO₃ solution was added. The aqueous layer was extractedwith CHCl₃ (1×200 mL, 2×50 mL). The combined organic layers wereconcentrated in vacuo to a tan solid, which was triturated withEtOAc/hexanes to give 29.8 g (92.1 mmol; 69%) of the title compound asan off-white powder. Electrospray MS 324 (M+1);

Elemental Analysis for C₁₉H₁₇NO₄: Calculated: C, 70.58; H, 5.30; N,4.33. Found: C, 70.86; H, 5.42; N, 4.49.

C. Methyl (R,S)-(1-Benzyl-4-methoxyindol-3-yl)hydroxyacetate

A solution of methyl (1-benzyl-4-methoxyindol-3-yl)oxoacetate (10 g,30.9 mmol) in 300 mL of MEOH was treated with NaBH₄ (1.46 g, 38.6 mmol).After stirring overnight, EtOAc and H₂O (20 mL each) were added. Theaqueous layer was extracted with EtOAc (2×25 mL). The combined organiclayers were dried over Na₂SO₄, filtered and concentrated in vacuo. Thecrude residue was recrystallized with EtOAc/hexanes to give 9.1 g (28.0mmol; 91%) of the title compound as a white powder. FDMS 325 (M+);

Elemental Analysis for C₁₉H₁₉NO₄: Calculated: C, 70.14; H, 5.89; N,4.30. Found: C, 70.42; H, 5.93; N, 4.41.

D. (R,S)-[(1-Benzyl-4-methoxyindol-3-yl)(carbomethoxy)methyl]thioaceticAcid

A 0° C. slurry of methyl(R,S)-(1-benzyl-4-methoxyindol-3-yl)hydroxyacetate (3.5 g, 10.8 mmol)and K₂CO₃ (2.2 g, 16.1 mmol) in 50 mL of CH₂Cl₂ was treated with TEA(0.075 mL, 0.54 mmol). After 15 min, MsCl (1.25 mL, 16.1 mmol) wasadded. After stirring for 2 h at 0° C., mercaptoacetic acid (3 mL, 43mmol) was added, and the reaction was heated at reflux overnight. Thereaction mixture was poured into 25 mL of saturated NaHCO₃ solution. Theaqueous layer was extracted with 25 mL of CHCl₃, acidified with 1 N HCland extracted again with CHCl₃ (3×25 mL). The acidified extracts werecombined, dried over Na₂SO₄, filtered and concentrated in vacuo. Theoily residue was purified by flash chromatography (SiO₂; gradient of 0%to 2% glacial acetic acid in 1:1 EtOAc/hexanes) to give 2.58 g (6.46mmol; 60%) of the title compound as a clear oil which solidified onstanding. FDMS 399 (M+);

Elemental Analysis for C₂₁H₂₁NO₅S.0.2H₂O: Calculated: C, 62.58; H, 5.35;N, 3.48. Found: C, 62.57; H, 5.26; N, 3.55.

E. Methyl(R,S)-(9-Benzyl-5-methoxy-1-oxo-3-thia-1,2,3,4-tetrahydrocarbazol-5-yl)carboxylate

A solution of the carboxylic acid from Part D above (2.32 g, 5.81 mmol)in 50 mL of 1,2-dichloroethane was treated with oxalyl chloride (2.0 mL,22.9 mmol) and 1 drop of DMF. The resulting mixture was allowed to stirat ambient temperature for 3 h, then it was concentrated in vacuo. Thecrude residue was purified by flash chromatography (SiO₂; gradient of 0%to 5% to 10% EtOAc/hexanes) to give 1.39 g (3.64 mmol; 63%) of the titlecompound as a pale yellow powder. FDMS 381 (M+);

Elemental Analysis for C₂₁H₁₉NO₄S: Calculated: C, 66.12; H, 5.02; N,3.67. Found: C, 66.00; H, 5.26; N, 3.63.

F. Methyl(R,S)-(9-Benzyl-5-methoxy-1-oxo-3-thia-1,2,3,4-tetrahydrocarbazol-5-yl)carboxamide

A solution of methyl(R,S)-(9-benzyl-5-methoxy-1-oxo-3-thia-1,2,3,4-tetrahydrocarbazol-5yl)carboxylate(1.1 g, 2.88 mmol) in 25 mL of THF/MeOH/H₂O (3:1:1) was treated withLiOH (83 mg, 3.46 mmol) and allowed to stir at ambient temperatureovernight. The aqueous layer was extracted with 25 mL of CH₂Cl₂,acidified with 1 N HCl and extracted again with CH₂Cl₂ (2×25 mL). Theacidified extracts were combined, dried over Na₂SO₄, filtered andconcentrated in vacuo. The crude intermediate acid was dissolved in 20mL of 1,2 dichloroethane and treated with (COCl)₂ (0.77 mL, 8.82 mmol).After 4 h, the reaction mixture was concentrated in vacuo andresuspended in 20 mL of 1,2 dichloroethane. Ammonia was bubbled throughthe solution for ca. 10 min, then the reaction mixture was capped andallowed to stand for 1.5 h. The crude amide was concentrated in vacuoand recrystallized from EtOAc/hexanes to give 780 mg (2.13 mmol; 74%) ofthe title compound as a light tan solid. FDMS 366 (M+);

Elemental Analysis for C₂₀H₁₈N₂O₄S.0.2H₂O: Calculated: C, 64.92; H,5.01; N, 7.57. Found: C, 64.95; H, 5.04; N, 7.78.

G.(R,S)-(9-Benzyl-5-hydroxy-1-oxo-3-thia-1,2,3,4-tetrahydrocarbazol-5-yl)carboxamide

A 0° C. solution of methyl (R,S)-(9-benzyl-5-methoxy-1-oxo-3-thia-1,2,3,4-tetrahydrocarbazol-5-yl)carboxamidein 10 mL of 1,2 dichloroethane was treated with BBr₃ (2.4 mL, 24.9mmol). After 3 h, the reaction mixture was quenched cold with MeOH andpoured into 20 mL of saturated NaHCO₃ solution. The aqueous layer wasextracted with CHCl₃ (4×50 mL). The combined organic layers were driedover Na₂SO₄, filtered and concentrated in vacuo. Purification of thecrude residue by radial chromatography (SiO₂; gradient of 0% to 2%MeOH/CHCl₃) to give 162 mg (0.46 mmol; 28%) of the title compound asbrown foam. FDMS 352 (M+);

Elemental Analysis for C₁₉H₁₆N₂O₃S.0.8H₂O: Calculated: C, 62.21; H,4.84; N, 7.64. Found: C, 62.57; H, 4.50; N, 7.27.

H. Ethyl(R,S)-(9-Benzyl-4-carbamoyl-1-oxo-3-thia-1,2,3,4-tetrahydrocarbazol-5-yl)oxyacetate

A slurry of(R,S)-(9-benzyl-5-hydroxy-1-oxo-3-thia-1,2,3,4-tetrahydrocarbazol-5-yl)carboxamide(145 mg, 0.411 mmol) and Cs₂CO₃ (400 mg, 1.23 mmol) in 5 mL of DMF wastreated with ethyl bromoacetate (0.046 mL, 0.411 mmol). After stirringovernight, the reaction mixture was poured into 20 mL of H₂O. Theaqueous layer was extracted with EtOAc (4×50 mL). The combined organiclayers were washed with H₂O (3×100 mL), dried over Na₂SO₄, filtered andconcentrated in vacuo. Purification of the crude residue by radialchromatography (SiO₂; gradient of 0% to 0.5% MeOH/CHCl₃) afforded 120 mg(0.274 mmol; 67%) of the title compound as light tan foam. FDMS 438(M+);

Elemental Analysis for C₂₃H₂₂N₂O₅S.0.3H₂O.0.4CHCl₃: Calculated: C,57.16; H, 4.72; N, 5.70. Found: C, 57.18; H, 4.61; N, 5.68.

I. (R,S)-(9-Benzyl-4-carbamoyl-1-oxo-3-thia-1,2,3,4-tetrahydrocarbazol-5-yl)oxyaceticAcid

A solution of ethyl(R,S)-(9-benzyl-4-carbamoyl-1-oxo-3-thia-1,2,3,4-tetrahydrocarbazol-5-yl)oxyacetate(20 mg, 0.0456 mmol) in 0.5 mL of THF/MeOH/H₂O (3:1:1) was treated withLiOH (1.3 mg, 0.0547 mmol). The solution quickly turned clear orange,and after 45 min, the aqueous layer was extracted with 10 mL of CHCl₃,acidified with 1 N HCl and extracted again with CHCl₃ (3×20 mL). Theacidified extracts were combined, dried over Na₂SO₄, filtered andconcentrated in vacuo to an orange solid. The crude acid was purified ona pipet column (SiO₂; gradient of 0 to 2% MeOH/CHCl₃, trace glacialacetic acid) to afford 10 mg (0.0244 mmol; 53%) of the title compound asa light tan solid. FAB HRMS: m/e for C₂₁H₁₉N₂O₅S: 411.1015. Found:411.1010 (M+1).

EXAMPLE 66 Preparation of(R,S)-(9-Benzyl-4-carbamoyl-1-oxo-3-thia-1,2,3,4-tetrahydrocarbazol-5-yl)oxyaceticAcid

A. Ethyl(R,S)-(9-Benzyl-4-carbamoyl-3-thia-1,2,3,4-tetrahydrocarbazol-5-yl)oxyacetate

A slurry of ethyl(R,S)-(9-benzyl-4-carbamoyl-1-oxo-3-thia-1,2,3,4-tetrahydrocarbazol-5-yl)oxyacetate(75 mg, 0.171 mmol) in 1 mL of MeOH and 1.5 mL of THF (for solubility)was treated with NaBH₄ (8 mg, 0.214 mmol). After 20 min, the reactionmixture was quenched with 10 mL of H₂O. The layers were separated, andthe aqueous layer was extracted with EtOAc (3×20 mL). The combinedorganic layers were dried over K₂CO₃, filtered and concentrated invacuo. The crude intermediate alcohol was immediately dissolved in 2 mLof 1,2-dichloroethane. The resulting solution was treated with Et₃SiH(0.19 mL, 1.2 mmol). Upon cooling to 0° C., TFA (0.13 mL, 1.7 mmol) wasadded dropwise. After 1 h, the reaction mixture was poured into 25 mL ofsaturated aqueous NaHCO₃. The layers were separated, and the aqueouslayer was extracted with EtOAc (3×25 mL). The combined organic layerswere dried over Na₂SO₄, filtered and concentrated in vacuo. Purificationof the crude residue by flash chromatography (SiO₂; gradient of 0% to0.5% MeOH/CHCl₃) afforded 38 mg (0.0895 mmol, 52%) of the title compoundas an off-white solid. FDMS 424 (M+);

Elemental Analysis for C₂₃H₂₄N₂O₄S.0.3H₂O.0.6CHCl₃: Calculated: C,56.51; H, 5.06; N, 5.59. Found: C, 56.61; H, 4.87; N, 5.60.

B.(R,S)-(9-Benzyl-4-carbamoyl-1-oxo-3-thia-1,2,3,4-tetrahydrocarbazol-5-yl)oxyaceticAcid)

A solution of ethyl(R,S)-(9-benzyl-4-carbamoyl-3-thia-1,2,3,4-tetrahydrocarbazol-5-yl)oxyacetate(28 mg, 0.066 mmol) in 0.5 mL of THF/MeOH/H₂O (3:1:1) was treated withLiOH (1.9 mg, 0.079 mmol). After 1 h, the aqueous layer was extractedwith 10 mL of CHCl₃, acidified with 1 N HCl and extracted again withCHCl₃ (3×20 mL). The organics were combined, dried over Na₂SO₄, filteredand concentrated in vacuo. The crude acid was purified on a pipet column(SiO₂; gradient of 0 to 1% MeOH/CHCl₃, trace glacial acetic acid) toafford 18 mg (0.045 mmol; 69%) of the title compound as an off-whitesolid. FAB HRMS: m/e, calcd for C₂₁H₂₁N₂O₄S: 397.1222., Found: 397.1216(m+1).

EXAMPLE 67 Preparation of2-(4-oxo-5-carboxamido-9-benzyl-9H-pyrido[3,4-b]indolyl)acetic acidhydrochloride

A. Preparation ofN-[5-(1-benzyl-3-oxo-1,2,3,6-tetrahydropyridinyl)]-2-bromo-3-carbomethoxyaniline

To a mixture of 2-bromo-3-carbomethoxyaniline (12.0 g, 52.2 mmol) andpyridinium p-toluenesulfonate (13.8 g, 54.9 mmol) in 2:1 toluene/dioxane(300 mL) was added 1-benzyl-3,5-piperidinedione (13.0 g, 70.2 mmol,Chen, L.-C.; Yang, S.-C. Heterocycles 1990, 31, 911-916). The apparatuswas fitted with a Dean-Starke trap and the mixture refluxed for 10 h.The mixture was concentrated in vacuo and the residue dissolved inchloroform. This solution was washed three times with water, once withsaturated sodium chloride solution, dried (sodium sulfate), filtered,and concentrated in vacuo to provide a dark oil. Chromatography (silicagel, chloroform to 4% methanol/96% chloroform) provided 2.0 g (9%) ofthe title product as a foam which could be crystallized formacetonitrile: mp 156-158° C. ¹H NMR (CDCl₃) d 7.55 (m, 2 H), 7.40 (m, 6H), 5.55 (s, 1 H), 3.94 (s, 3 H), 3.85 (m, 2 H), 3.56 (m, 2 H), 3.30(bs, 2 H); MS ES+ m/e 414.9 (p), 416.9 (p); IR (KBr, cm⁻¹) 3185, 2944,1728, 1603, 1544, 1306.

Elemental Analysis for C₂₀H₁₉BrN₂O₃: Calculated: C, 57.84; H, 4.61; N,6.75. Found: C, 58.13; H, 4.49; N, 6.91.

B. Preparation of2-benzyl-4-oxo-5-carbomethoxy-1,2,3,4-tetrahydro-9H-pyrido[3,4-b]indole

A mixture ofN-[5-(1-benzyl-3-oxo-1,2,3,6-tetrahydropyridinyl)]-2-bromo-3-carbomethoxyaniline(2.07 g, 4.98 mmol), palladium(II) acetate (0.112 g, 0.499 mmol),tri-o-tolylphosphine (0.304 g, 0.999 mmol), triethylamine (1.3 mL, 9.3mmol), and N,N-dimethylformamide (3 mL) in acetonitrile (12 mL) wasplaced in a tube and purged with argon. The tube was sealed and heatedat 100° C. for 16 h. The mixture was cooled to room temperature, dilutedwith ethyl acetate, filtered, and the filtrate concentrated in vacuo togive a dark oil. Chromatography (silica gel, chloroform to 4%methanol/96% chloroform) provided 1.28 g (77%) of an oil whichcrystallized upon storing at 10° C.: recrystallized fro EtoAc/hexane mp174-176° C. ¹H NMR (CDCl₃) d 9.25 (bs, 1 H), 7.38 (d, J=9 Hz, 2 H), 7.30(m, 5 H), 7.23 (t, J=8 Hz, 1 H), 3.97 (s, 3 H), 3.75 (s, 2 H), 3.72 (s,2 H), 3.61 (s, 2 H); MS ES+ m/e 335 (p+1); IR (KBr, cm⁻¹) 3080, 1721,1628, 1476, 1294, 1138.

Elemental Analysis for C₂₀H₁₈N₂O₃: Calculated: C, 71.84; H, 5.43; N,8.38. Found: C, 72.06; H, 5.31; N, 8.31.

C. Preparation of2,9-dibenzyl-4-oxo-5-carbomethoxy-1,2,3,4-tetrahydro-9H-pyrido[3,4-b]indole

To a solution of2-benzyl-4-oxo-5-carbomethoxy-1,2,3,4-tetrahydro-9H-pyrido[3,4-b]indole(0.928 g, 2.78 mmol) in dry tetrahydrofuran (5 mL) was added 60% sodiumhydride in oil (111 mg). The resulting mixture was stirred at roomtemperature until gas evolution ceased. A solution of benzyl iodide(0.606. g, 2.78 mmol) in dry tetrahydrofuran (5 mL) was added to thereaction mixture and the resulting solution stirred at room temperaturefor 60 h. The mixture was diluted with methylene chloride and washedtwice with saturated sodium chloride solution. The organic layer wasdried (magnesium sulfate), filtered, and concentrated in vacuo. Theresidue was triturated with ethyl acetate resulting in a yellowprecipitate (163 mg). The filtrate was concentrated in vacuo andchromatographed (silica gel, 5% methanol/95% methylene chloride) toprovide an additional 580 mg of the title compound (743 mg total, 63%)as a crystalline solid: mp 198-199° C. ¹H NMR (CDCl₃) d 7.43 (d, J=7 Hz,1 H), 7.36 (d, J=8 Hz, 1 H), 7.25 (m, 9 H), 6.95 (m, 2 H), 5.24 (s, 2H), 4.01 (s, 3 H), 3.78 (m, 4 H), 3.40 (bs, 2 H); MS EI+ m/e 425 (p+1);IR (KBr, cm⁻¹) 1726, 1648, 1449, 1291, 1134, 1107.

Elemental Analysis for C₂₇H₂₄N₂O₃: Calculated: C, 76.40; H, 5.70; N,6.60. Found: C, 76.11; H, 5.45; N, 6.54.

D. Preparation 4-hydroxy-5-carbomethoxy-9-benzyl-9H-pyrido[3,4-b]indole

A mixture of of2,9-dibenzyl-4-oxo-5-carbomethoxy-1,2,3,4-tetrahydro-9H-pyrido[3,4-b]indole(521 mg, 1.23 mmol) and 10% palladium-on-carbon (250 mg) in acetic acid(15 mL) was refluxed for 4 h. The reaction flask was cooled to roomtemperature and purged with nitrogen. The flask was placed under apositive pressure of hydrogen and heated at 75° C. for 16 h. The mixturewas cooled to room temperature, filtered, and concentrated in vacuo toprovide an orange solid. Chromatography (silica gel, 4% methanol/96%methylene chloride) provided 271 mg (60%) of the title compound as amono-hydrated yellow powder: mp>250° C. ¹H NMR (CDCl₃) d 8.46 (s, 1 H),8.22 (s, 1 H), 8.09 (d, J=8 Hz, 1 H), 7.70 (d, J=8 Hz, 1 H), 7.56 (t,J=8 Hz, 1 H), 7.23 (m, 3 H), 7.08 (m, 2 H), 5.60 (s, 2 H), 4.11 (s, 3H); MS ES+ m/e 333 (p+1).

Elemental Analysis for C₂₀H₁₆N₂O₃.H₂O: Calculated: C, 68.60; H, 4.98; N,7.91. Found: C, 68.56; H, 5.18; N, 8.00.

E. Preparation of4-hydroxy-5-carboxamido-9-benzyl-9H-pyrido[3,4-b]indole

4-Hydroxy-5-carbomethoxy-9-benzyl-9H-pyrido[3,4-b]indole (200 mg, 0.618mmol) was dissolved in a solution of 2M methanolic ammonia (10 mL) andplaced in an open tube. The solution was saturated with gaseous ammoniafor 10 min. The tube was sealed and heated at 60-65° C. for 8 h. Thereaction mixture was cooled to room temperature and the resultingprecipitate was collected in vacuo to provide 0.12 g (61%) of the titlecompound as a yellow solid: mp>250° C. ¹H NMR (DMSO-d₆) d 10.99 (s, 1 H,—OH), 8.99 (bs, 1 H, —NH), 8.59 (s, 1 H), 8.55 (bs, 1 H, —NH), 7.96 (d,J=7 Hz, 1 H), 7.94 (s, 1 H), 7.64 (t, J=8 Hz, 1 H), 7.57 (d, J=7 Hz, 1H), 7.22 (m, 3 H), 7.12 (d, J=7 Hz, 2 H), 5.80 (s, 2 H); MS ES+ m/e 318(p+1).

Elemental Analysis for C₁₉H₁₅N₃O₂: Calculated: C, 71.91; H, 4.76; N,13.24. Found: C, 72.20; H, 4.57; N, 13.48.

F. Preparation of2-(4-oxo-5-carboxamido-9-benzyl-9H-pyrido[3,4-b]indolyl)acetic acidhydrochloride

A mixture of 4-hydroxy-5-carboxamido-9-benzyl-9H-pyrido[3,4-b]indole (57mg, 0.18 mmol), methyl bromoacetate (51 mL, 0.54 mmol), and cesiumcarbonate (114 mg, 0.349 mmol) in N,N-dimethylformamide (2 mL) wasstirred at room temperature for 45 min. The mixture was treated with aminimum of water and methanol and concentrated in vacuo. The residue wasdissolved in 1M aqueous lithium hydroxide (0.5 mL) and stirred at roomtemperature for 1 h. The mixture was concentrated in vacuo. The residuewas dissolved in dilute aqueous hydrochloric acid and purified viareverse-phase HPLC, followed by lyophilization, to provide 28.5 mg (38%)of the title product. ¹H NMR (DMSO-d₆) d 12.85 (bs, 1 H), 9.41 (s, 1 H),9.11 (s, 1 H), 8.66 (s, 1 H), 8.30 (s, 1 H), 8.10 (d, J=8 Hz, 1 H), 7.85(t, J=8 Hz, 1 H), 7.76 (d, J=7 Hz, 1 H), 7.27 (m, 3 H), 7.19 (m, 2 H),5.88 (s, 2 H), 5.37 (s, 2 H); MS ES+ m/e 375 (p+1).

Elemental Analysis for C₂₁H₁₇N₃O₄.HCl.0.5H₂O: Calculated: C, 60.58; H,4.47; N, 10.09. Found: C, 60.39; H, 4.35; N, 9.69.

EXAMPLE 68 Preparation of[N-benzyl-1-carbamoyl-1-aza-1,2,3,4-tetrahydrocarbazol-8-yl]oxyaceticacid

A. Preparation of methyl N-benzyl-4-methoxyindole-2-carboxylate

6.15 g of methyl 4-methoxy indole-2-carboxylate were dissolved in 30 mlof dimethylformamide, added to a slurry of 12 g of cesium carbonate in20 ml of dimethyl formamide and warmed to 45-50° C. for 1 hour. Aftercooling, benzyl bromide was added in the same solvent and stirred overnight at r.t. The work up was done by adding ice-water and extractingtwice with ether. The ether layer was washed with water, brine, driedover magnesium sulfate, filtered and concentrated to dryness. 8.6 g(97%). Mass Spec.: M⁺+1 (296) mp. 104-5° C.

B. Preparation of N-benzyl-2-hydroxymethyl-4-methoxyindole

To a slurry of 0.31 g of lithium aluminum hydride (8.2 mmol) in 25 ml ofether at 0-10° C. was added the methyl N-benzyl-4-methoxyindole-2-carboxylate (2.95 g) dissolved in 10 ml of the same solvent.The mixture was stirred at r.t. for 2 hours, quenched under the standardFieser and Fieser procedure, filtered through a pad of celite andconcentrated to dryness to give 2.8 g of alcohol. Mass spec.: M⁺+1 (268)mp.142-3° C.

C. Preparation of N-benzyl-4-methoxyindole-2-carboxaldehyde

A mixture of 3.2 g of N-benzyl-2-hydroxymethyl-4-methoxyindole (12 mmol)and 15 g of manganese dioxide (172 mmol) in 50 cc of dry dichloromethanewas heated at reflux for 6 hours, cooled down to r.t. and filteredthrough celite. Concentration to dryness afford 3.6 g of a yellow solid.mp.130-31° C.

D. Preparation of methyl N-benzyl-4-methoxyindole-2-propionate

3.1 g (11.7 mmol) of N-benzyl-4-methoxyindole-2-carboxaldehyde werecombined in 20 ml of pyridine with 3.65 g (35.1 mmol) of malonic acidand 0.4 g of piperidine; the mixture was heated at 100° C. for 2 hours,concentrated under vacuum to one third of volume and acidified with 1NHCl. The solid was filtered off, washed with water and vacuum dried togive 3.0 g of product.(85%). Mass Spec.:M⁺+1(308) mp.208-10° C. Thismaterial was dissolved in 30 ml of methanol and 1 ml of sulfuric acid,heated to reflux for 2 hours, cooled to r.t. and concentrated to a smallvolume. The resultant solid was isolated by filtration. This materialwas hydrogenated in methanol-tetrahydrofuran with 5% Pd on carbon toafford the title compound (2.5 g) in 66% yield overall. Mass Spec.: M³⁰+1(324) mp.195-6° C.

E. Preparation of N-benzyl-1-aza-(3,4-dihydro)-8-methoxycarbazol-2-one

2.5 g of methyl N-benzyl-4-methoxyindole-2-propionate (7.7 mmol) weredissolved in 25 ml of ether and 2 equivalents (5.86 g ) ofbis(2,2,2-trichloroethyl)azodicarboxylate were added portionwise overhalf hour, stirred at r.t. over night, filtered and concentrated todryness. This compound was dissolved in a small amount of ether andfiltered to give 3.2 g of a green solid. 1 g of this complex was reducedin 5 ml of acetic acid with 1 g of activated Zn. The temperature waskept at 10° C. for 1 hour, allowed to warmed up to r.t. and stirredovernight. Water was added and basified with 1N sodium hydroxide.Extraction with tetrahydrofuran and ethyl acetate, washing, drying andconcentration gave a brown oil that crystallized from isopropylalcohol.300 mg of crude and 130 mg after crystallization. Mass Spec.:M⁺+1(307) mp.206-8° C.

F. Preparation ofN-benzyl-1-carbamoyl-1-aza-8-methoxy-1,2,3,4-tetrahydrocarbazole

500 mg of N-benzyl-1-aza-(3,4-dihydro)-8-methoxycarbazol-2-one intetrahydrofuran were treated with 82 mg of lithium aluminum hydride atr.t. then warmed to 50° C. Work up was done according to the Fieser andFieser procedure, The Agents for Organic Synthesis, Fieser, L. et al.,John Wiley and Sons, NY 1967, p583), filtered through celite andconcentrated to dryness. 420 mg of crude product. This product withoutfurther purification was treated with trimethylsilyl isocyanate intetrahydrofuran for two hours and then concentrated to dryness. Etherwas added and the amorphous solid isolated by filtration. 360 mg. MassSpec.: M⁺+1(336)

G. Preparation of[N-benzyl-1-carbamoyl-1-aza-1,2,3,4-tetrahydrocarbazol-8-yl]oxyaceticacid methyl ester

300 mg ofN-benzyl-1-carbamoyl-1-aza-8-methoxy-1,2,3,4-tetrahydrocarbazole weredissolved in 10 ml of dichloromethane and cooled down to −20° C. 10 mlof a 1M solution of Boron tribromide in the same solvent were addeddropwise. It was stirred at r.t. for three hours and poured over 1 NHCl-ice. This material was extracted in ethyl acetate, washed withwater, brine, dried over magnesium sulfate, filtered and concentrated todryness to give 190 mg. This material was dissolved in 5 ml ofdimethylformamide and a slight excess of cesium carbonate was added.After warming to 35° C. for 10 minutes the methyl bromoacetate added andstirred at r.t. over night. Water was added, extracted with ethylacetate, washed, dried over magnesium sulfate, filtered, andconcentrated to dryness. Flash purification using 3:1 chloroform-ethylacetate afforded 45 mg of product. Mass Spec.: M⁺+1(394) NMR(CDCl₃): 7.3(m,5 H), 7.0 (m,1 H), 6.95 (d, 1H) 6.4(d,1H) 5.25 (s,2H) 5.2 (b,2H) 4.8(s,2H), 3.8 (s,3H), 2.75 (b,2H), 2.1 (b,2H), 1.25 (2,2H).

H. Preparation of[N-benzyl-1-carbamoyl-1-aza-1,2,3,4-tetrahydrocarbazol-8-yl]oxyaceticacid

15 mg of[N-benzyl-1-carbamoyl-1-aza-1,2,3,4-tetrahydrocarbazol-8-yl]oxyaceticacid methyl ester were dissolved in 10 ml of 7:1tetrahydrofuran:methanol and 0.5 ml of 1N sodium hydroxide was added.After stirring at r.t. overnight, the solvents were stripped off, theresidue acidified with 1N HCl and the solid filtered. This was washedwith water and vacuum dried. Mass Spec.: M⁺+1(380)

EXAMPLE 69 Preparation of4-methoxy-6-methoxycarbonyl-10-phenylmethyl-6,7,8,9-tetrahydropyrido[1,2-a]indole

A. Preparation of 3-phenylmethyl-7-methoxyindole

A mixture of 15 gm (0.086 mol) of 2-methoxyphenylhydrazine hydrochlorideand 12 mL (0.09 mol) of 3-phenylpropionaldehyde in 300 mL of toluene wasrefluxed for 1.5 hours with azeotropic removal of water. The suspensionwas cooled, evaporated in vacuo and the residue dissolved in 500 mL ofdichloromethane and stirred with 9 mL (0.09 mol) of phosphoroustrichloride for 18 hours. The solution was poured into ice-water,stirred well, and made basic with sodium bicarbonate. The organic phasewas washed with saturated sodium chloride, dried over sodium sulfate,and evaporated in vacuo. The residue was chromatographed on silica geleluting with a gradient hexane/5-15% ethyl ether to give product, 8.0gm, 40%, as a viscous oil. ¹H NMR (CDCl₃) δ: 3.95 (s, 3H), 4.10 (s, 2H),6.65 (d, 1H), 6.90 (s, 1H), 7.00 (t, 1H), 7.10 (d, 1H), 7.20 (m, 1H),7.30 (m, 4H), 8.20 (br s, 1H)

B. Preparation of methyl2-[3-phenylmethyl-7-methoxyindol-1-yl]-5-chloropentanoate

A solution of 2.7 gm (11 mmol) of the product from Part A in 75 mL ofdimethylsulfoxide and a few mL's of tetrahydrofuran was treated inportions with 480 mg of sodium hydride (60% in mineral oil, 12 mmol),stirred for 10 minutes, and then for 16.5 hours after the addition of0.3 gm of 18-crown-6 and and 1.7 gm (13 mmol) of methyl2-bromo-5-chloropentanoate. The solution was diluted with ethyl acetateand water. The organic phase was washed with water, washed withsaturated sodium chloride, dried over sodium sulfate, and evaporated invacuo. The residue was chromatograhed on silica gel eluting with agradient hexane/10-25% ethyl ether to give product, 1.7 gm, 40%, as anoil. ¹H NMR (DMSOd₆) δ: 1.35 (m, 1H), 1.60 (m, 1H), 2.10 (m, 1H), 2.20(m, 1H), 3.55 (t, 2H), 3.60 (s, 3H), 3.80 (s, 3H), 4.00 (s, 2H), 6.60(d, 1H), 6.85 (t, 1H), 7.00 (d, 1H), 7.10 (m, 1H), 7.15 (s, 1H), 7.20(m, 4H).

C. Preparation of4-methoxy-6-methoxycarbonyl-10-phenylmethyl-6,7,8,9-tetrahydropyrido[1,2-a]indole

A solution of 1.8 gm (4.7 mmol) of the product from Part B and 4 mL (15mmol) of tri-n-butyltin hydride in 50 mL of toluene was heated to refluxand treated dropwise with a solution of 85 mg (0.5 mmol) of2,2′-azobis(2-methylpropionitrile). The solution was refluxed 1 hourafter the addition, cooled, evaporated in vacuo, taken up in ethylacetate, shaken with aqueous potassium floride, and filtered. Theorganic phase was washed with saturated sodium chloride, dried oversodium sulfate, and evaporated in vacuo to give a mixture of4-methoxy-6-methoxycarbonyl-10-phenylmethyl-6,7,8,9,9a,10-hexahydropyrido[1,2-a]indoleand methyl 2-[3-phenylmethyl-7-methoxyindol-1-yl]pentanoate which wasdissolved in 25 mL of dioxane and stirred with 450 mg (2 mmol) ofdichlorodicyanoquinone for 30 minutes. The solution was evaporated invacuo, taken up in dichloromethane, filtered through florisil, andevaporated in vacuo. The residue was chromatographed on silica geleluting with a gradient hexane/10-20% ethyl ether to give the titlecompound, 75 mg, 5%, as an amorphous solid. ¹H NMR (CDCl₃) δ: 1.70 (m,1H), 1.85 (m, 1H), 2.20 (m, 1H), 2.35 (m, 1H), 2.70 (m, 1H), 3.00 (m,1H), 3.70 (s, 3H), 3.80 (s, 3H), 4.00 (q, 2H), 5.65 (m, 1H), 6.50 (d,1H), 6.90 (t, 1H), 7.00 (d, 1H), 7.10 (m, 1H), 7.20 (m, 4H).

EXAMPLE 70 Preparation of(4-carboxamido-9-phenylmethyl-4,5-dihydrothiopyrano[3,4-b]indol-5-yl)oxyaceticacid

A. Preparation of methyl 3-(4-methoxyindol-3-yl)lactate

To a solution of 4-methoxyindole (200 mg, 1.36 mmol) and methyl2,3-epoxypropionate (258 mg, 2.22 mmol) in 40 ml of carbon tetrachloridewas added stannic chloride (0.16 ml, 1.39 mmol) dropwise at −5 to −10°C. The reaction mixture was stirred at that temperature for 1 hour andwarmed up to room temperature slowly and with continous stirring. Thereaction mixture was diluted with ethyl acetate and sodium bicarbonatesolution, washed with brine, dried over sodium sulfate, and evaporatedin vacuo to give 210 mg a yellow oil which was subjected to flash columnchromatography (2:1 to 1:1 hexanes:ethyl acetate) to give product, 157mg, 44%, as a yellow foam. ¹H NMR (CDCl₃) d: 1.20 (t, 3H), 3.15(dd, 1H),3.49 (dd, 1H), 3.95(s, 3H), 4.12 (q, 2H), 4.49(dd, 1H), 5.27 (s, 2H),6.50(d, 1H), 6.83 (d, 1H), 7.08 (m, 2H), 7.31(m, 5H).

B. Preparation of a mixture of methyl2-bromo-3-(4-methoxyindol-3-yl)propionate and methyl2-bromomethyl-3-(4-methoxyindol-3-yl)acetate

To a solution of the product from Part A (29 mg, 0.11 mmol) andtriphenylphosphine (57.7 mg, 0.22 mmol) in 2 ml of 1,2-dichloroethanewas added a solution of 1,2-dibromotetrachloroethane (71.6 mg, 0.22mmol) in 1 mL of 1,2-dichloroethane at −10° C. The reaction mixture waswarmed up to room temperature and stirred for an additional 10-15minutes. It was then concentrated in vacuo and subjected to flash columnchromatography (2:1 hexanes:ethyl ether) to give 31 mg,86%, of a mixtureof methyl 2-bromo-3-(4-methoxyindol-3-yl)propionate and methyl2-bromomethyl-3-(4-methoxyindol-3-yl)acetate as a yellow oil. ¹H NMR(CDCl₃) d: 1.20 (t, 3H), 3.15(dd, 1H), 3.49 (dd, 1H), 3.95(s, 3H), 4.12(q, 2H), 4.49(dd, 1H), 5.27 (s, 2H), 6.50(d, 1H), 6.83 (d, 1H), 7.08 (m,2H), 7.31(m, 5H).

C. Preparation of a mixture of methyl2-bromo-3-(1-phenylmethyl-4-methoxyindol-3-yl)propionate and methyl2-bromomethyl-3-(1-phenylmethyl-4-methoxyindol-3-yl)acetate

The product mixture from Part B was dissolved in 5 ml of acetonitrileand ˜1 equivalent of potassium carbonate was added. This was heated toreflux overnight to form methyl2-[4-methoxyindol-3,3-yl]spirocyclopropane carboxylate. To this reactionmixture was added 2 equivalents of benzyl bromide and the mixturerefluxed overnight. The mix was filtered and concentrated. The residuewas purified by flash column chromatography (97:1 hexanes:ether) to give29 mg, 66%, of a ca. 1:9 mixture of methyl2-bromo-3-(1-phenylmethyl-4-methoxyindol-3-yl)propionate and methyl2-bromomethyl-3-(1-phenylmethyl-4-methoxyindol-3-yl)acetate. ¹H NMR(CDCl₃) d: 1.28 (t, 3H), 3.82 (d, 2H), 3.96 (5, 3H), 4.26 (q, 2H), 4.81(t, 1H), 5.25 (s, 2H), 6.53 (d, 1H), 6.89 (d, 1H), 7.02-7.18 (m, 7H).

D. Preparation of methyl2-acetylthiomethyl-3-(1-phenylmethyl-4-methoxyindol-3-yl)acetate

To a solution of the product mixture from Part C (2.87 g, 7.0 mmol) in15 ml of tetrahydrofuran and 40 ml of dimethylformamide was added18-crown-6 (0.31 gm) and potassium thioacetate (12.2 g, 0.11 mol) andthen stirred at 50° C. for 2 hours. The mixture was diluted with ethylacetate and brine. The organic phase was washed, dried and concentrated.The residue was purified by HPLC and afforded 1.8 g, 64.2%, of product.¹H NMR (CDCl₃) d: 1.19 (t, 3H), 2.28 (s, 3H), 3.54 (dd, 2H), 3.91 (s,3H), 4.52 (t, 1H), 5.22 (s, 2H), 6.53 (d, 1H), 6.82 (d, 1H), 7.00 (s,1H), 7.11 (m, 3H), 7.28 (m, 3H).

E. Preparation of methyl2-mercaptomethyl-3-(1-phenylmethyl-4-methoxyindol-3-yl)acetate

To a solution of the product from Part D (0.84 g, 2.0 mmol) in ethanol(70 ml) was added potassium carbonate (4.1 g, 30 mmol). The reactionmixture was stirred at room temperature for 1.5 hours. It was quenchedwith hydrochloric acid solution and extracted with ethyl acetate, dried,concentrated to give the product, 0.74 gm, 98%. ¹H NMR (CDCl₃) d: 1.21(t, 3H), 1.55 (t, 1H), 3.03 (m, 2H), 3.91 (s, 1H), 4.19 (q, 2H), 4.50(t, 1H), 5.22 (s, 3H), 6.48 (d, 1H), 6.83 (d, 1H), 6.98 (s, 1H), 7.10(m, 3H), 7.27 (m, 3H).

F. Preparation of methyl2-methoxymethylmercaptomethyl-3-(1-phenylmethyl-4-methoxyindol-3-yl)acetate

To a solution of the product from Part E (0.71 g, 1.92 mmol) intetrahydrofuran (45 ml) was added a few mgs of 18-crown-6 and potassiumhexamethyldisilazide (4.54 ml, 0.5M in toluene) at −75° C. The solutionwas stirred at −75° C. for 3 minutes and then iodomethyl methyl ether(0.28 ml, mmol) was added and stirred for 20 minutes at −7.5° C. Thereaction mixture was poured into a mixture of ethyl acetate and brine.The organic layer was washed with brine, dried over sodium sulfate, andconcentrated in vacuo. The residue was purified by column chromatography(3:1 hexanes:ethyl acetate) to give product, 650 mg, 82%, as a lightyellow oil. ¹H NMR (CDCl₃) d: 1.23 (t, 3H), 3.14 (m, 2H), 3.35 (s, 3H),3.91 (s, 3H), 4.22 (q, 2H), 4.65 (d, 1H), 4.66 (t, 1H), 4.75 (d, 1H),5.22 (s,2H), 6.51 (d, 1H), 6.90 (d, 1H), 7.00 (s, 1H), 7.07 (m, 3H),7.28 (m, 3H).

G. Preparation of4-methoxycarbonyl-5-methoxy-9-phenylmethyl-4,5-dihydrothiopyrano[3,4-b]indole

To a solution of the product from Part F (518 mg, 1.25 mmol) indichloromethane (10 ml) was quickly added one spatula of zinc bromide.The mixture was stirred at room temperature for 4.5 hours. The mix waspoured into ethyl acetate and sodium bicarbonate solution. The organiclayer was washed with brine, dried over sodium sulfate, and concentratedin vacuo. The residue was purified by column chromatography (3:1hexanes:ethyl acetate) to give 269 mg, 56.4%, of the product as a yellowoil. ¹H NMR (CDCl₃) d: 1.22 (t, 3H), 3.20 (dd, 1H), 3.59 (d, 1H), 3.72(d, 1H), 3.83 (s, 3H), 4.21 (m 3H), 4.53 (t, 1H), 5.18 (d, 1H), 5.24 (d,1H), 6.43 (d, 1H), 6.82 (d, 1H), 6.98 (d, 1H), 7.09 (t, 1H), 7.22 (m4H).

H. Preparation of4-carboxamido-5-methoxy-9-phenylmethyl-4,5-dihydrothiopyrano[3,4-b]indole

To a solution of the product from Part G (120 mg, 0.31 mmol) in benzene(15 ml) was added freshly prepared methylchloroaluminum amide (0.67M,9.3 ml). The mixture was stirred at 50° C. overnight. It was cooled,added to 1N hydrochloric acid, and diluted with ethyl acetate and brine.The organic layer was washed with brine, dried over sodium sulfate, andconcentrated. The residue was purified by column chloromatography (3:1hexanes:ethyl acetate to ethyl acetate to 1% methanol indichloromethane) to give product, 49.3 mg, 45%. MS FIA 353.4 (M+1)

Elemental Analyses for C₂₀H₂₀N₂₀O₂S: Calculated: C, 68.16; H, 5.72; N,7.95. Found C, 68.31; H, 5.83; N, 8.05.

I. Preparation of ethyl[4-carboxamido-9-phenylmethyl-4,5-dihydrothiopyrano[3,4-b]indol-5-yl]oxyacetate

To a solution of the product from Part H (210 mg, 0.60 mmol) indichloromethane (30 ml) was added boron tribromide (10 ml, 1M indichloromethane). The mixture was stirred for 0.5 hour. The reactionmixture was poured into ice-water, extracted with 1% methanol indichloromethane, washed with brine, dried, and concentrated. The crude4-carboxamido-5-hydroxy-9-phenylmethyl-4,5-dihydrothiopyrano[3,4-b]indolewas dissolved in 13 ml DMF and the resulting solution was treated withsodium hydride (50 mg, 60% in mineral oil, 1.25 mmol) for 5 minutes andthen with ethyl bromoacetate (0.09 ml, 1.2 mmol.) for 1.5 hours. Thereaction mixture was diluted with ethyl acetate and brine. The organiclayer was washed, dried, and concentrated. The residue was purified bycolumn chromatography (1%-2% methanol in dichloromethane) to giveproduct 79 mg, 31%, as a yellow foam. MS FIA 425.2 (M+1)

Elemental Analyses for C₂₃H₂₄N₂O₄S: Calculated: C, 65.07; H, 5.57; N,6.47. Found: C, 65.88; H, 5.57; N, 6.47.

J. Preparation of(4-carboxamido-9-phenylmethyl-4,5-dihydrothiopyrano[3,4-b]indol-5-yl)oxyaceticacid

To a solution of the product from Part I (53.7 mg, 0.13 mmol) in amixture solvent (5 ml, tetrahydrofuran:methanol:water, 3:1:1) was addedlithium hydroxide (˜2.5 equiv). The solution was stirred overnight,acidified to PH ˜2, and extracted with ethyl acetate. The organicsolution was dried over sodium sulfate and evaporated in vacuo to givethe title compound, 37 mg, 74%, as a yellow solid. MS FIA 397.1 (M+1).

Elemental Analyses for C₂₁H₂₀N₂O₄S: Calculated: C, 63.62; H, 5.08; N,7.07. Found: C, 63.83; H, 5.33; N, 6.87.

EXAMPLE 71 Preparation of3,4-dihydro-4-carboxamidol-5-methoxy-9-phenylmethylpyrano[3,4-b]indole

A. Preparation of ethyl [4-methoxyindol-3-yl]acetate

To a solution of 2.94 gm (20 mmol) of 4-methoxyindole in 150 ml oftetrahydrofuran was added slowly 13 ml of n-butyl lithium (1.6M inhexane; 20 mmol) followed by the slow addition of 20 ml of zinc chloride(1.0M in ethyl ether; 20 mmol) at 0-5° C. The cooling bath was removedand the solution stirred for 2 hours and then treated with 2.1 ml (25mmol) of ethyl bromoacetate for 19 hours, diluted with ethyl acetate,washed with water, washed with brine, dried over sodium sulfate, andevaporated in vacuo. The residue was chromatographed on silica geleluting with a gradient hexane/10-50% ethyl ether to give startingmaterial (40%) and then product, 2.3 gm, 50%, as an oil. ¹H NMR (CDCl₃)δ: 1.25 (t, 3H), 3.85 (s, 3H), 3.90 (s, 2H), 4.10 (q, 2H), 6.45 (d, 1H),6.90 (d, 1H), 6.95 (s, 1H), 7.05 (t, 1H), 8.00 (br s, 1H).

B. Preparation of ethyl [4-methoxy-1-phenylmethylindol-3-yl]acetate

A solution of 1.6 gm (6.9 mmol) of the product from Part A in 75 ml ofdimethylformamide and 10 ml of tetrahydrofuran was treated in portionswith 300 mg of sodium hydride (60% in mineral oil; 7.5 mmol) and thenwith 1.0 ml (8.4 mmol) of benzyl bromide for 4 hours, and then dilutedwith ethyl acetate and water. The organic phase was washed with water,washed with brine, dried over sodium sulfate, and evaporated in vacuo.The residue was chromatographed on silica gel eluting with a gradienthexane/10-20% ethyl ether to give product, 1.0 gm, 45%, as an oil. ¹HNMR (CDCl₃) δ: 1.25 (t, 3H), 3.85 (s, 3H), 3.90 (s, 2H), 4.10 (q, 2H),5.25 (s, 2H), 6.50 (d, 1H), 6.85 (d, 1H), 6.95 (s, 1H), 7.05 (t, 1H),7.10 (d, 2H), 7.25 (m, 3H). MS ES+ 324.0 (M+1).

C. Preparation of ethyl2-[4-methoxy-1-phenylmethylindol-3-yl]-3-phenylmethoxypropionate

To a stirred solution of the product from Part B (1.4 g, 4.3 mmol) in 50mL of tetrahydrofuran was added potassium hexamethydisilazide (9.54 mL,0.5M in toluene; 4.77 mmol) slowly at −75° C. under nitrogen. Theresulting reaction mixture was stirred for a couple minutes and treatedwith chloromethyl benzyl ether (1.7 g, 8.6 mmol) at −75° C. The reactionmixture was stirred at −75° C. for 0.5 hour and poured into a mixture ofbrine and ethyl acetate. The organic layer was washed with brine, driedand concentrated in vacuo. The residue was purified by flash columnchromatography (3:1 hexanes:ethyl acetate) to give product as a yellowoil, 1.34 g, 70.3%. ¹H NMR (CDCl₃) δ: 1.22 (t, 3H), 3.88 (s, 3H), 3.94(dd, 1H), 4.21 (m, 3H), 4.56 (s, 2H), 4.75 (dd, 1H), 5.20 (s, 2H), 6.40(d, 1H), 6.81 (d, 1H), 7.02-7.34 (m, 7H).

D. Preparation of ethyl2-[4-methoxy-1-phenylmethylindol-3-yl]-3-hydroxypropionate

To a stirred solution of the product from Part C (0.33 g) in ethylacetate (50 mL) was added 5% Pd/C (0.17 g) and 1 mL of 1N hydrochloricacid. The reaction mixture was stirred under ca. 1 atmosphere ofhydrogen at room temperature overnight. The reaction mixture wasfiltered, neutralized with sodium bicarbonate solution, and washed withbrine. The organic layer was dried over sodium sulfate and concentratedin vacuo to give product, 0.23 g, 89%, as a yellow oil. ¹H NMR (CDCl₃)δ: 1.21(t, 3H), 3.87 (s, 3H), 3.92 (dd, 1H), 4.20 (m, 3H), 4.44 (dd,1H), 5.21 (s, 2H), 6.43 (d, 1H), 6.84 (d, 1H), 6.98 (s, 1H), 7.00 (m,3H), 7.30 (m, 3H).

E. Preparation of ethyl2-[4-methoxy-1-phenylmethylindol-3-yl]-3-methoxypropionate

To a stirred solution of the product from Part D (0.26 g, 0.74 mmol) in18 mL of tetrahydrofuran was added potassium hexamethyldisilazide (1.63mL, 0.5M in toluene, 0.815 mmol) slowly at −75° C. To the reactionmixture was added iodomethyl methyl ether (0.13 mL, 1.48 mmol) at −75°C. after 2 minutes stirring at the same temperature. The mixture wasdiluted with brine and ethyl acetate after 15 minutes at −75° C. Theorganic layer was washed with brine, dried over sodium sulfate, andconcentrated in vacuo. The residue was purified by column chromatography(4:1 to 3:1 hexanes:ethyl acetate) to give product, 0.23 g, 79.3%, as ayellow oil. ¹H NMR (CDCl₃) δ: 1.21 (t, 3H), 3.35 (s, 3H), 3.91 (s, 3H),9.95 (m, 2H), 4.22 (q, 2H), 4.65 (s, 2H), 4.72 (dd, 1H), 5.21 (s, 2H),6.41 (d, 1H), 6.82 (d, 1H), 7.04 (m, 4H), 7.24 (m, 3H).

F. Preparation of3,4-dihydro-4-ethoxycarbonyl-5-methoxy-9-phenylmethylpyrano[3,4-b]indole

To a stirred solution of boron trifluoride etherate (0.071 mL, 0.55mmol) in dichloromethane (6 mL) was added a solution of the product fromPart E (148 mg, 0.37 mmol) in dichloromethane (4 mL) at 0-5° C. slowly.The reaction mixture was warmed up to room temperature and stirred for0.5 hour to complete the reaction. The reaction mixture was diluted withethyl acetate and brine. The organic layer was washed with brine, driedover sodium sulfate, and concentrated in vacuo. The residue waschromatographed on silica gel (1:1 hexanes:ethyl ether) to give product,49.3 mg, 36.2%, as a white solid. ¹H NMR (CDCl₃) δ: 1.21 (t, 3H),3.88(s, 3H), 4.05 (dd, 1H), 4.15 (m, 1H), 4.24 (m, 3H), 4.60 (d, 1H),4.78 (d, 1H), 5.04 (d, 1H), 5.18 (d, 1H), 6.44 (d, 1H), 6.82 (d, 1H),7.01 (m, 3H), 7.22 (m, 3H).

G. Preparation of3,4-dihydro-4-carboxamidol-5-methoxy-9-phenylmethylpyrano[3,4-b]indole

To a solution of the product from Part F (490 mg, 1.34 mmol) in benzene(60-80 mL) was added freshly prepared methylchloroaluminum amide (0.67M,60 ml, 40 mmol). The reaction mixture was stirred at 50° C. for 24hours, cooled, decomposed by the addition of 1N hydrochloric acid, anddiluted with ethyl acetate and brine. The organic layer was washed withbrine, dried over sodium sulfate, and concentrated. The residue waspurified by column chloromatography on silica gel eluting with agradient dichloromethane/1-2% methanol to give product, 335 mg, 74.6%.MS FIA 337.2 (M+1)

Analyses for C₂₀H₂₀N₂O₃: Calculated: C, 71.41; H, 5.99; N, 8.33. Found:C, 71.51; H, 6.19; N, 8.26.

EXAMPLE 72 Preparation of 2-[(2,9bis-benzyl-4-carbamoyl-1,2,3,4-tetrahydro-beta-carbolin-5-yl)oxy]aceticacid

A. Preparation of 4-(tertbutyldimethylsilyl)oxyindole

Imidazole (15.3 g, 225 mmol) was added to a solution of 4-hydroxyindole(20 g, 150 mmol) in 300 mL of anhydrous methylene chloride at ambienttemperature. The resulting mixture was treated withtert-butyldimethylsilyl chloride (25 g, 165 mmol). After stirringovernight at ambient temperature, the reaction mixture was poured into300 mL of water. The layers were separated, and the aqueous phase wasextracted with methylene (2×100 mL). The combined organic layers weredried over sodium sulfate, filtered and concentrated in vacuo to a blackoil. The crude residue was purified on a Prep 500 (silica gel; 0% to 5%ethyl acetate/hexanes) to give the title compound as a light purple waxysolid in quantitative yield. MS (ion spray, NH₄OAc) m/e [M+1]⁺ 248,[M−1]⁻ 246.

Elemental Analysis for C₁₄H₂₁NOSi: Calculated: C, 67.96; H, 8.55; N,5.66. Found: C, 69.10; H, 8.79; N, 5.70.

B. Preparation of Ethyl[4-(tert-H-butyldimethylsilyl)oxyindole]-3-acetic acid

A solution of indole (78) (247 mg, 1.00 mmol) in dry tetrahydrofuran (2mL) under a nitrogen atmosphere was cooled to −10° C. thenn-butyllithium (0.625 mL, 1.00 mmol), 1.6 M in hexanes, was addeddropwise over 30 sec by syringe. The resultant solution was stirred 15minutes zinc chloride (1.0 mL, 1.0 mmol), 1 M in ether, was added all atonce. The solution was stirred 2 hours while warming to ambienttemperature. To this solution was added ethyl iodoacetate (0.118 mL,1.00 mmol) all at once. The reaction mixture darkened but remainedclear. The mixture was stirred 3 hours at ambient temperatureconcentrated in vacuo. The residue was purified directly on silica gel(30×35 mm column) eluting with methylene chloride. Concentration of theappropriate fractions yielded 192 mg (57.8%) of the titled product as awhite solid. MS (ion spray, NH₄OAc) m/e [M+1]⁺ 334, [M−1]⁻ 332.

Elemental Analyses for C₁₈H₂₇NO₃Si: Calculated: C, 64.86; H, 8.11; N,4.20. Found: C, 65.11; H, 8.02; N, 4.24.

C. Preparation of Ethyl[2,9-bis-benzyl-5-(tert-butyldimethylsilyl)oxy-1,2,3,4-tetrahydro-beta-carboline]-4-aceticacid

A solution of the ester (79) (5.08 g, 15.2 mmol) in dry tetrahydrofuran(100 mL) was cooled to −78° C. then treated dropwise with 0.5 Mpotassium bis(trimethylsilyl)amide in toluene (32 mL, 16 mmol). Theresultant solution was stirred 10 min then benzyl iodide (3.32 g, 15.2mmol) was added all at once. The cooling bath was removed, the mixturewarmed quickly to 0° C., then slowly to ambient temperature. Afterstirring 75 minutes at ambient temperature the mixture was concentratedin vacuo. The residue was taken up in ether and washed successively with10% aqueous citric acid, water and saturated sodium bicarbonatesolution. The ethereal solution was dried over magnesium sulfate andconcentrated in vacuo. The residue was purified on silica gel (70×130 mmcolumn) eluting with 500 mL 1:1 methylene chloride/hexanes then 500 mLmethylene chloride. The appropriate fractions were combined andconcentrated in vacuo to yield 5.90 g (91%) of ethyl[1-benzyl-4-(tert-butyldimethylsilyl)oxyindole]-3-acetic acid as a brownoil. Benzyl amine (2.14 g, 20.0 mmol) and paraformaldehyde (1.80 g, 120mmol) were combined and warmed to reflux in anhydrous methanol (10 mL)for 2 hours. The mixture was concentrated in vacuo and dried undervacuum for 30 minutes to yield crude benzyl bis(methoxymethyl)amine as awater white oil. This material was used immediately withoutpurification. To a cooled solution of ethyl[1-benzyl-4-(tert-butyldimethylsilyl)oxyindole]-3-acetic acid (190 mg,0.45 mmol) in dry tetrahydrofuran (2 mL) was added potassiumbis(trimethylsilyl)amide (0.98 mL, 0.49 mmol), 0.5 M in toluene,dropwise by syringe. After stirring the mixture 10 minutes,trimethylsilylchloride (0.057 mL, 0.45 mmol) was added all at once. Themixture was allowed to warm to ambient temperature then concentrated invacuo. The residue was dried 30 minutes under vacuum to yield thetrimethylsilylketene acetal (81). The residual ketene acetal (81) wasimmediately dissolved in methylene chloride (30 mL) to which was addedfreshly prepared benzyl bis(methoxymethyl)amine (175 mg, 0.90 mmol). Themixture was cooled to −78° C. and treated with 1 M zinc chloride inether(0.9 mL, 0.9 mmol). The mixture was allowed to warm to ambienttemperature and stirred for an additional 45 minutes. The mixture waswashed with saturated sodium bicarbonate solution then passed thourougha silica gel plug eluting with 1:4 ethyl acetate/hexane. The desiredfractions were combined and concentrated in vacuo then further purifiedon an SCX cartridge (1 g, Varian) with methanol and ammonia. The desiredfractions were combined, concentrated and purified on silica gel elutingwith methylene chloride to yield 34 mg (14%) of the titled tricyclicindole. MS (ion spray, NH₄OAc) m/e [M+1]⁺ 555.

Elemental Analyses for C₃₄H₄₂N₂O₃Si: Calculated: C, 73.64; H, 7.58; N,5.05. Found: C, 73.42; H, 7.61; N, 5.15.

D. Preparation of ethyl2-[(2,9-bis-benzyl-4-carbamoyl-1,2,3,4-tetrahydro-beta-carbolin-5-yl)oxy]aceticacid

A solution of 565 mg (1.02 mmol) of the compound of Part C in 10 mL 1:1methanol/tetrahydrofuran was treated with 5 mL (5 mmol) 1 N lithiumhydroxide under an atmosphere of nitrogen. The mixture was warmedbriefly, allowed to stir at ambient temperature for 2 hours thenconcentrated in vacua to about 5 mL. The pH of the solution was adjustedto ˜5 to 6 with 1 N hydrochloric acid. The resultant precipitate wascollected and dried to yield 430 mg (102%) of hydroxy acid. This productwas suspended with hydroxybenzotriazole (160 mg, 1.19 mmol) and1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (940 mg,2.30 mmol) in 30 mL of 1:1 tetrahydrofuran/methylene chloride. Themixture was stirred vigorously for 10 minutes, saturated with ammoniagas, stirred vigorously for 1 hour, then concentrated in vacuo. Theresidue was partitioned between ethyl acetate and saturated sodiumbicarbonate solution. The ethyl acetate solution was dried overanhydrous magnesium sulfate, filtered and concentrated in vacuo. Theresidue was passed thourough a plug of silica gel with ethyl acetate.The eluant was evaporated to yield 175 mg (43%) of the carboxamide.

This compound was dissolved in 3 mL dry tetrahydrofuran, cooled to −70°C. and treated with 0.5 M potassium bis(trimethylsilyl)amide in toluene(0.85 mL, 0.425 mmol). The solution was stirred 10 min then ethylbromoacetate was added all at once. The reaction was stirred 6 hourswhile warming to ambient temperature. The mixture was concentrated invacuo and the residue purified on silica gel eluting with ethyl acetateto yield 86 mg (41%) of the title compound. MS (ion spray, NH₄OAc) m/e[M+1]⁺ 498.

Elemental Analyses for C₃₀H₃₁N₃O₄: Calculated: C, 72.43; H, 6.24; N,8.45. Found: C, 72.54; H, 6.36; N, 8.64.

E. Preparation of2-[(2,9-bis-benzyl-4-carbamoyl-1,2,3,4-tetrahydro-beta-carbol-5-yl)oxy]aceticacid

A solution of the compound from Part D (78 mg, 0.16 mmol) in 2 mL 1:1tetrahydrofuran/methanol was stirred with 1 M lithium hydroxide (0.63mL, 0.63 mmol) for 3 hours. The mixture was concentrated in vacuo togive a white solid. The solid was suspended in 2 mL water and the pHadjusted to ˜5 to 6 with 1 N hydrochloric acid forming a somewhatdifferent white solid. The new solid was collected by filtration anddried under vacuum to yield 68 mg (93%) of the title compound. MS (ionspray, NH₄OAc) m/e [M+1]⁺ 470.

Elemental Analyses for C₂₈H₂₇N₃O₄.0.8 H₂O: Calculated: C, 69.49; H,5.96; N, 8.68. Found: C, 69.50; H, 5.64; N, 8.54.

F. Preparation of2-[(9-benzyl-4-carbamoyl-1,2,3,4-tetrahydro-beta-carbolin-5-yl)oxy]aceticacid hydrochloride

A suspension of the compound from part E (68 mg, 0.14 mmol) was treatedwith 3-4 drops of 1N HCl to effect solution. To the solution was added10% palladium on carbon (70 mg). The flask was appropriately purged withnitrogen and hydrogen then stirred under a hydrogen atmosphere for 18 h.The mixture was filtered and the solids thoroughly washed with methanol.The filtrate was concentrated in vacuo to yield a mixture of acid andmethyl ester. The mixture was treated with aqueous 1N LiOH (0.3 mL) inabout 2 mL methanol over 2 h. The mixture was concentrated in vacuo andthe residue acidified to pH=5 with 1 N HCl causing a precipitate toform. The precipitate was collected by filtration. The filtrate wasconcentrated in vacuo to leave a residue. The collected solid and theresidue were purified by reverse phase chromatography to yield 31 mg(68%) of the title compound as the HCl salt. MS (ion spray) m/e [M+1]⁺380. IR (KBr, cm⁻¹) 3393(br), 3100-2500 (COOH), 1735, 1671, 1638, 1615,1445, 1263, 1133, 731, 722.

Therapeutic Use of Tricyclic Compounds

The compounds described herein are believed to achieve their beneficialtherapeutic action principally by direct inhibition of human sPLA₂, andnot by acting as antagonists for arachidonic acid, nor other activeagents below arachidonic acid in the arachidonic acid cascade, such as5-lipoxygenases, cyclooxygenases, etc.

The method of the invention for inhibiting sPLA₂ mediated release offatty acids comprises contacting sPLA₂ with an therapeutically effectiveamount of the compound of Formula (I) or its salt.

The compounds of the invention may be used in a method of treating amammal (e.g., a human) to alleviate the pathological effects of septicshock, adult respiratory distress syndrome, pancreatitus, trauma,bronchial asthma, allergic rhinitis, and rheumatoid arthritis; whereinthe method comprises administering to the mammal a compound of formula(I) in a therapeutically effective amount. A “therapeutically effective”amount is an amount sufficient to inhibit sPLA₂ mediated release offatty acid and to thereby inhibit or prevent the arachidonic acidcascade and its deleterious products. The therapeutic amount of compoundof the invention needed to inhibit sPLA₂ may be readily determined bytaking a sample of body fluid and assaying it for sPLA₂ content byconventional methods.

Throughout this document, the person or animal to be treated will bedescribed as a “mammal”, and it will be understood that the mostpreferred subject is a human. However it must be noted that the study ofadverse conditions of the central nervous system in non-human animals isonly now beginning, an that some instances of such treatments are cominginto use. Accordingly, use of the present compounds in non-human animalsis contemplated. It will be understood that the dosage ranges for otheranimals will necessarily be quite different from the doses administeredto humans, and accordingly that the dosage ranges described berecalculated. For example, a small dog may be only {fraction(1/10)}^(th) of a typical human's size, and it will therefore benecessary for a much smaller dose to be used. The determination of aneffective amount for a certain non-human animal is carried out in thesame manner described below in the case of humans, and veterinarians arewell accustomed to such determinations.

Pharmaceutical Formulations of the Invention

As previously noted the compounds of this invention are useful forinhibiting sPLA₂ mediated release of fatty acids such as arachidonicacid. By the term, “inhibiting” is meant the prevention ortherapeutically significant reduction in release of sPLA₂ initiatedfatty acids by the compounds of the invention. By “pharmaceuticallyacceptable” it is meant the carrier, diluent or excipient must becompatible with the other ingredients of the formulation and notdeleterious to the recipient thereof.

In general, the compounds of the invention are most desirablyadministered at a dose that will generally afford effective resultswithout causing any serious side effects and can be administered eitheras a single unit dose, or if desired, the dosage may be divided intoconvenient subunits administered at suitable times throughout the day.

The specific dose of a compound administered according to this inventionto obtain therapeutic or prophylactic effects will, of course, bedetermined by the particular circumstances surrounding the case,including, for example, the route of administration, the age, weight andresponse of the individual patient, the condition being treated and theseverity of the patient's symptoms. Typical daily doses will contain anon-toxic dosage level of from about 0.01 mg/kg to about 50 mg/kg ofbody weight of an active compound of this invention.

Preferably the pharmaceutical formulation is in unit dosage form. Theunit dosage form can be a capsule or tablet itself, or the appropriatenumber of any of these. The quantity of active ingredient in a unit doseof composition may be varied or adjusted from about 0.1 to about 1000milligrams or more according to the particular treatment involved. Itmay be appreciated that it may be necessary to make routine variationsto the dosage depending on the age and condition of the patient. Thedosage will also depend on the route of administration.

A “chronic” condition means a deteriorating condition of slow progressand long continuance. As such, it is treated when it is diagnosed andcontinued throughout the course of the disease. An “acute” condition isan exacerbation of short course followed by a period of remission. In anacute event, compound is administered at the onset of symptoms anddiscontinued when the symptoms disappear.

Pancreatitis, trauma-induced shock, bronchial asthma, allergic rhinitisand rheumatoid arthritis may occur as an acute event or a chronic event.Thus, the treatment of these conditions contemplates both acute andchronic forms. Septic shock and adult respiratory distress, on the otherhand, are acute conditions treated when diagnosed.

The compound can be administered by a variety of routes including oral,aerosol, rectal, transdermal, subcutaneous, intravenous, intramuscular,and intranasal.

Pharmaceutical formulations of the invention are prepared by combining(e.g., mixing) a therapeutically effective amount of the compounds ofthe invention together with a pharmaceutically acceptable carrier ordiluent therefor. The present pharmaceutical formulations are preparedby known procedures using well known and readily available ingredients.

In making the compositions of the present a invention, the activeingredient will usually be admixed with a carrier, or diluted by acarrier, or enclosed within a carrier which may be in the form of acapsule, sachet, paper or other container. When the carrier serves as adiluent, it may be a solid, semi-solid or liquid material which acts asa vehicle, or can be in the form of tablets, pills, powders, lozenges,elixirs, suspensions, emulsions, solutions, syrups, aerosols (as a solidor in a liquid medium), or ointment, containing, for example, up to 10%by weight of the active compound. The compounds of the present inventionare preferably formulated prior to administration.

For the pharmaceutical formulations any suitable carrier known in theart can be used. In such a formulation, the carrier may be a solid,liquid, or mixture of a solid and a liquid. Solid form formulationsinclude powders, tablets and capsules. A solid carrier can be one ormore substances which may also act as flavoring agents, lubricants,solubilisers, suspending agents, binders, tablet disintegrating agentsand encapsulating material.

Tablets for oral administration may contain suitable excipients such ascalcium carbonate, sodium carbonate, lactose, calcium phosphate,together with disintegrating agents, such as maize, starch, or alginicacid, and/or binding agents, for example, gelatin or acacia, andlubricating agents such as magnesium stearate, stearic acid, or talc.

In powders the carrier is a finely divided solid which is in admixturewith the finely divided active ingredient. In tablets the activeingredient is mixed with a carrier having the necessary bindingproperties in suitable proportions and compacted in the shape and sizedesired. The powders and tablets preferably contain from about 1 toabout 99 weight percent of the active ingredient which is the novelcompound of this invention. Suitable solid carriers are magnesiumcarbonate, magnesium stearate, talc, sugar lactose, pectin, dextrin,starch, gelatin, tragacanth, methyl cellulose, sodium carboxymethylcellulose, low melting waxes, and cocoa butter.

Sterile liquid form formulations include suspensions, emulsions, syrupsand elixirs.

The active ingredient can be dissolved or suspended in apharmaceutically acceptable carrier, such as sterile water, sterileorganic solvent or a mixture of both. The active ingredient can often bedissolved in a suitable organic solvent, for instance aqueous propyleneglycol. Other compositions can be made by dispersing the finely dividedactive ingredient in aqueous starch or sodium carboxymethyl cellulosesolution or in a suitable oil.

The following pharmaceutical formulations 1 through 8 are illustrativeonly and are not intended to limit the scope of the invention in anyway. “Active ingredient”, refers to a compound according to Formula(III) or a pharmaceutically acceptable salt, solvate, or prodrugthereof.

Formulation 1 Hard gelatin capsules are prepared using the followingingredients: Quantity (mg/capsule) Compound of Example 5 250 Starch,dried 200 Magnesium stearate 10 Total 460 mg

Formulation 2 A tablet is prepared using the ingredients below: Quantity(mg/tablet) Compound of Example 10 250 Cellulose, microcrystalline 400Silicon dioxide, fumed 10 Stearic acid 5 Total 665 mg

The components are blended and compressed to form tablets each weighing665 mg

Formulation 3 An aerosol solution is prepared containing the followingcomponents: Weight Compound of Example 15 0.25 Ethanol 25.75 Propellant22 (Chlorodifluoromethane) 74.00 Total 100.00

The active compound is mixed with ethanol and the mixture added to aportion of the propellant 22, cooled to −30° C. and transferred to afilling device. The required amount is then fed to a stainless steelcontainer 10 and diluted with the remainder of the propellant. The valveunits are then fitted to the container.

Formulation 4 Tablets, each containing 60 mg of active ingredient, aremade as follows: Compound of Example 25 60 mg Starch 45 mgMicrocrystalline cellulose 35 mg Polyvinylpyrrolidone (as 10% solutionin water)  4 mg Sodium carboxymethyl starch 4.5 mg  Magnesium stearate0.5 mg  Talc  1 mg Total 150 mg 

The active ingredient, starch and cellulose are passed through a No. 45mesh U.S. sieve and mixed thoroughly. The aqueous solution containingpolyvinylpyrrolidone is mixed with the resultant powder, and the mixturethen is passed through a No. 14 mesh U.S. sieve. The granules soproduced are dried at 50° C. and passed through a No. 18 mesh U.S.sieve. The sodium carboxymethyl starch, magnesium stearate and talc,previously passed through a No. 60 mesh U.S. sieve, are then added tothe granules which, after mixing, are compressed on a tablet machine toyield tablets each weighing 150 mg.

Formulation 5 Capsules, each containing 80 mg of active ingredient, aremade as follows: Compound of Example 30  80 mg Starch  59 mgMicrocrystalline cellulose  59 mg Magnesium stearate  2 mg Total 200 mg

The active ingredient, cellulose, starch, and magnesium stearate areblended, passed through a No. 45 mesh U.S. sieve, and filled into hardgelatin capsules in 200 mg quantities.

Formulation 6 Suppositories, each containing 225 mg of activeingredient, are made as follows: Compound of Example 35   225 mgSaturated fatty acid glycerides 2,000 mg Total 2,225 mg

The active ingredient is passed through a No. 60 mesh U.S. sieve andsuspended in the saturated fatty acid glycerides previously melted usingthe minimum heat necessary. The mixture is then poured into asuppository mold of nominal 2 g capacity and allowed to cool.

Formulation 7 Suspensions, each containing 50 mg of active ingredientper 5 ml dose, are made as follows: Compound of Example 40 50 mg Sodiumcarboxymethyl cellulose 50 mg Syrup 1.25 ml Benzoic acid solution 0.10ml Flavor q.v. Color q.v. Purified water to total   5 ml

The active ingredient is passed through a No. 45 mesh U.S. sieve andmixed with the sodium carboxymethyl cellulose and syrup to form a smoothpaste. The benzoic acid solution, flavor and color are diluted with aportion of the water and added, with stirring. Sufficient water is thenadded to produce the required volume.

Formulation 8 An intravenous formulation may be prepared as follows:Compound of Example 45 100 mg Isotonic saline 1,000 ml

The solution of the above ingredients generally is administeredintravenously to a subject at a rate of 1 ml per minute.

Assay Experiments Assay Example 1

The following chromogenic assay procedure was used to identify andevaluate inhibitors of recombinant human secreted phospholipase A₂. Theassay described herein has been adapted for high volume screening using96 well microtiter plates. A general description of this assay method isfound in the article, “Analysis of Human Synovial Fluid Phospholipase A₂on Short Chain Phosphatidylcholine-Mixed Micelles: Development of aSpectrophotometric Assay Suitable for a Microtiterplate Reader”, byLaure J. Reynolds, Lori L. Hughes, and Edward A Dennis, AnalyticalBiochemistry, 204, pp. 190-197, 1992 (the disclosure of which isincorporated herein by reference):

Reagents

REACTION BUFFER

CaCl₂.2H₂O (1.47 g/L)

KCl (7.455 g/L)

Bovine Serum Albumin (fatty acid free) (1 g/L)

(Sigma A-7030, product of Sigma Chemical Co. St. Louis Mo., USA)

TRIS HCl (3.94 g/L)

pH 7.5 (adjust with NaOH)

ENZYME BUFFER

0.05 NaOAc.3H₂O, pH 4.5

0.2 NaCl

Adjust pH to 4.5 with acetic acid

DTNB

5,5′-dithiobis-2-nitrobenzoic acid

RACEMIC DIHEPTANOYL THIO—PC

racemic1,2-bis(heptanoylthio)-1,2-dideoxy-sn-glycero-3-phosphorylcholine

TRITON X-100™ prepare at 6.249 mg/ml in reaction buffer to equal 10 uM

TRITON X-100™ is a polyoxy ethylene non-ionic detergent supplied byPierce Chemical Company, 3747 N. Meridian Road, Rockford, Ill. 61101.

REACTION MIXTURE

A measured volume of racemic dipheptanoyl thio PC supplied in chloroformat a concentration of 100 mg/ml is taken to dryness and redissolved in10 millimolar TRITON X-100™ nonionic detergent aqueous solution.Reaction Buffer is added to the solution, then DTNB to give the ReactionMixture.

The reaction mixture thus obtained contains 1 mM diheptanoly thio-PCsubstrate, 0.29 mm Triton X-100™ detergent, and 0.12 mm DTMB in abuffered aqueous solution at pH 7.5.

Assay Procedure

1. Add 0.2 ml reaction mixture to all wells;

2. Add 10 ul test compound (or solvent blank) to appropriate wells, mix20 seconds;

3. Add 50 nanograms of sPLA₂ (10 microliters) to appropriate wells;

4. Incubate plate at 40° C. for 30 minutes;

5. Read absorbance of wells at 405 nanometers with an automatic platereader.

All compounds were tested in triplicate. Typically, compounds weretested at a final concentration of 5 ug/ml. Compounds were consideredactive when they exhibited 40% inhibition or greater compared touninhibited control reactions when measured at 405 nanometers. Lack ofcolor development at 405 nanometers evidenced inhibition. Compoundsinitially found to be active were reassayed to confirm their activityand, if sufficiently active, IC₅₀ values were determined. Typically, theIC₅₀ values (see, Table I, below) were determined by diluting testcompound serially two-fold such that the final concentration in thereaction ranged from 45 ug/mL to 0.35 ug/ml. More potent inhibitorsrequired significantly greater dilution. In all cases, % inhibitionmeasured at 405 nanometers generated by enzyme reactions containinginhibitors relative to the uninhibited control reactions was determined.Each sample was titrated in triplicate and result values were averagedfor plotting and calculation of IC₅₀ values. IC₅₀ were determined byplotting log concentration versus inhibition values in the range from10-90% inhibition.

Compounds of the instant invention were tested in Assay Example 1 andwere found to be effective at concentrations of less than 100 μM.

Assay Example 2

Method

Male Hartley strain guinea pigs (500-700 g) were killed by cervicaldislocation and their heart and lungs removed intact and placed inaerated (95% O₂:5% CO₂) Krebs buffer. Dorsal pleural strips (4×1×25 mm)were dissected from intact parenchymal segments (8×4×25 mm) cut parallelto the outer edge of the lower lung lobes. Two adjacent pleural strips,obtained from a single lobe and representing a single tissue sample,were tied at either end and independently attached to a metal supportrod. One rod was attached to a Grass force-displacement transducer ModelFTO3C, product of Grass Medical Instruments Co., Quincy, Mass., USA).Changes in isometric tension were displayed on a monitor and thermalrecorder (product of Modular Instruments, Malvern, Pa.). All tissueswere placed in 10 ml jacketed tissue baths maintained at 37° C. Thetissue baths were continuously aerated and contained a modified Krebssolution of the following composition (millimolar) NaCl, 118.2; KCl,4.6; CaCl₂.2H₂O, 2.5; MgSO₄.7H₂O, 1.2; NaHCO₃, 24.8; KH₂PO₄, 1.0; anddextrose, 10.0. Pleural strips from the opposite lobes of the lung wereused for paired experiments. Preliminary data generated fromtension/response curves demonstrated that resting tension of 800 mg wasoptimal. The tissues were allowed to equilibrate for 45 min. as the bathfluid was changed periodically.

Cumulative Concentration-response Curves

Initially tissues were challenged 3 times with KCl (40 mM) to testtissue viability and to obtain a consistent response. After recordingthe maximal response to KCl, the tissues were washed and allowed toreturn to baseline before the next challenge. Cumulativeconcentration-response curves were obtained from pleural strips byincreasing the agonist concentration (sPLA₂) in the tissue bath byhalf-log₁₀ increments while the previous concentration remained incontact with the tissues (Ref.1, supra.). Agonist concentration wasincreased after reaching the plateau of the contraction elicited by thepreceding concentration. One concentration-response curve was obtainedfrom each tissue. To minimize variability between tissues obtained fromdifferent animals, contractile responses were expressed as a percentageof the maximal response obtained with the final KCl challenge. Whenstudying the effects of various drugs on the contractile effects ofsPLA₂, the compounds and their respective vehicles were added to thetissues 30 minutes prior to starting the sPLA₂ concentration-responsecurves.

Statistical Analysis

Data from different experiments were pooled and presented as apercentage of the maximal KCl responses (mean±S.E.). To estimate thedrug induced rightward shifts in the concentration response curves, thecurves were analyzed simultaneously using statistical nonlinear modelingmethods similar to those described by Waud (1976), Equation 26, p. 163,(Ref.2). The model includes four parameters: the maximum tissue responsewhich was assumed the same for each curve, the ED₅₀ for the controlcurve, the steepness of the curves, and the pA₂, the concentration ofantagonist that requires a two-fold increase in agonist to achieve anequivalent response. The Schild slope was determined to be 1, usingstatistical nonlinear modeling methods similar to those described byWaud (1976), Equation 27, p. 164 (Ref. 2). The Schild slope equal to 1indicates the model is consistent with the assumptions of a competitiveantagonist; therefore, the pA2 may be interpreted as the apparent K_(B),the dissociation constant of the inhibitor.

To estimate the drug-induced suppression of the maximal responses, sPLA₂responses (10 ug/ml) were determined in the absence and presence ofdrug, and percent suppression was calculated for each pair of tissues.Representative examples of inhibitory activities are presented in Table2, below.

Ref. 1—Van, J. M.: Cumulative dose-response curves. II. Technique forthe making of dose-response curves in isolated organs and the evaluationof drug parameters. Arch. Int. Pharmacodyn. Ther., 143: 299-330, 1963.

Ref. 2—Waud, D.: Analysis of dose-response relationships, in Advances inGeneral and Cellular Pharmacology eds Narahashi, Bianchi 1:145-178,1976.

Compounds of the instant invention were tested in Assay Example 2 andwere found to be effective at concentrations below 20 μM.

Assay Example 3 sPLA₂ Transgenic Mice Assay

Materials & Methods

The mice utilized in these studies were mature, 6-8 month old,ZnSO₄-stimulated, hemizygous line 2608^(a) transgenic mice (Fox et. al.1996). Transgenic mice from this line express human sPLA₂ in the liverand other tissues and typically achieve levels of human sPLA₂ in theircirculation of approximately 173±10 ng/ml when maximally stimulated withZnSO₄ (Fox, et al. 1996). The mice were housed under constant humidityand temperature and received food and water ad libitum. Animal roomlighting was maintained on a 12-hour light/dark cycle and allexperiments were performed at the same time of the day during the earlymorning light period.

For intravenous testing, compounds or vehicle were administered as an IVbolus via the tail vein in a volume of 0.15 ml. Vehicle consisted of1-5% dimethylsulfoxide, 1-5% ethanol and 10-30% polyethylene glycol 300in H₂O; the concentrations of these ingredients were adjusted accordingto the solubility of the compound. Mice were bled retro-orbitally priorto drug or vehicle administration and 30 minutes, 2 and 4 hoursthereafter. Three to six mice were used for each dose. PLA₂ catalyticactivity in the serum was assayed with a modifiedphosphatidylcholine/deoxycholine mixed micelle assay (Fox, et al. 1996,Schadlich, et al., 1987) utilizing 3 mM sodium deoxycholate and 1 mM1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine.

For oral testing, compounds were dissolved in 1-5% ethanol/10-30%polyethylene glycol 300 in H₂O or were suspended in 5% dextrose in H₂Oand administered by oral gavage. Serum was prepared from retro-orbitalblood and assayed for PLA₂ catalytic activity as above.

References

Fox, N., M. Song, J. Schrementi, J. D. Sharp, D. L.

White, D. W. Snyder, L. W. Hartley, D. G. Carlson, N. J.

Bach, R. D. Dillard, S. E. Draheim, J. L. Bobbitt, L.

Fisher and E. D. Mihelich. 1996. Eur. J. Pharmacol. 308: 195.

Schadlich, H. R., M. Buchler, and H. G. Beger, 1987, J. Clin. Chem.Clin. Biochem. 25, 505.

Compounds of the instant invention were tested in Assay Example 3 andwere found to be effective.

While the present invention has been illustrated above by certainspecific embodiments, it is not intended that these specific examplesshould limit the scope of the invention as described in the appendedclaims.

We claim:
 1. A compound of the formula

wherein PG is an acid protecting group; R²¹ is a non-interferingsubstituent; R¹² is H or CH₂R⁴ where R⁴ is H, —(C₅-C₁₄)alkyl,—(C₃-C₁₄)cycloalkyl; pyridyl, phenyl or phenyl substituted with from 1-5substituents selected from the group consisting of —(C₁-C₆)alkyl, halo,—CF₃, —OCF₃, —(C₁-C₄)alkoxy, —CN, —(C₁-C₄)alkylthio, phenyl(C₁-C₄)alkyl, —(C₁-C₄)alkylphenyl, phenyl, phenoxy, —OR⁹; where R⁹ andR¹⁰ are independently hydrogen, —CF₃, phenyl, —(C₁-C₄)alkyl,—(C₁-C₄)alkylphenyl or —phenyl(C₁-C₄)alkyl; tetrazole; tetrazolesubstituted with —(C₁-C₄)alkyl or —(C₁-C₄)alkylphenyl: or naphthyl;R³(a) is H, —O(C₁-C₄)alkyl, halo, —(C₁-C₆)alkyl, phenyl,—(C₁-C₄)alkylphenyl; phenyl substituted with —(C₁-C₆)alkyl, halo or—CF₃; —CH₂OSi(C₁-C₆)alkyl, furyl, thiophenyl, —(C₁-C₆)hydroxyalkyl,—(C₁-C₆)alkoxy(C₁-C₆)alkyl, —(C₁-C₆)alkoxy(C₁-C₆)alkenyl; or—(CH₂)_(n)R⁸ where R⁸ is H, —NR⁹R¹⁰, —CN or phenyl where R⁹ and R¹⁰ areindependently hydrogen, —CF₃, phenyl, —(C₁-C₄)alkyl, —(C₁-C₄)alkylphenylor -phenyl(C₁-C₄)alkyl and n is 1 to 8: Z is cyclohexenyl or phenyl; andX is halo.
 2. A compound which is selected from the group consisting of:(3-Carbomethoxy-2-bromoanilino)-5-methyl-cyclohex-2-en-1-one;5-Carbomethoxy-1,2-dihydro-2-methyl-9H-carbazol-4(3H)-one;(3-Carbomethoxy-2-bromoanilino)-5-methyl-cyclohex-2-en-1-one;5-Carbomethoxy-1,2-dihydro-2-methyl-9H-carbazol-4(3H)-one;[(Phenyl)methyl]-5-carbomethoxy-2-methyl-1,2-dihydrocarbazol-4(3H)-one;[(3-Fluorophenyl)methyl]-5-carbomethoxy-2-methyl-1,2-dihydrocarbazol-4(3H)-one;[(3-Methylphenyl)methyl]-5-carbomethoxy-2-methyl-1,2-dihydrocarbazol-4(3H)-one;(3-Carbomethoxy-2-bromoanilino)-5-(4-trifluoromethylphenyl-cyclohex-2-en-1-one;5-Carbomethoxy-1,2-dihydro-2-(4-trifluoromethylphenyl)-9H-carbazol-4(3H)-one;[(Phenyl)methyl]-5-carbomethoxy-2-(4-trifluoromethylphenyl)-1,2-dihydrocarbozol-4(3H)-one;(2-Bromo-3-carbomethoxyanilino)-5-pentylcyclohex-2-en-1-one;5-Carbomethoxy-1,2-dihydro-2-pentyl-9H-carbazol-4(3H)-one;5-Carbomethoxy-1,2-dihydro-2-pentyl-9-(phenylmethyl)carbazol-4(3H)-one;(2-Bromo-3-carbomethoxyanilino)-5-[(1-methyl)ethyl]cyclohex-2-en-1-one;5-Carbomethoxy-1,2-dihydro-2-(1-methylethyl)-9H-carbazol-4(3H)-one;5-Carbomethoxy-1,2-dihydro-2-(1-methylethyl)-9-(phenylmethyl)carbazol-4(3H)-one;(2-Bromo-3-carbomethoxyanilino)-5-(hydroxymethyl)cyclohex-2-en-1-one;5-Carbomethoxy-1,2-dihydro-2-(hydroxymethyl)-9H-carbazol-4(3H)-one;5-Carbomethoxy-1,2-dihydro-2-(hydroxymethyl)-9-(phenylmethyl)carbazol-4(3H)-one;(2-Bromo-3-carbomethoxyanilino)-5-phenylcyclohex-2-en-1-one;5-Carbomethoxy-1,2-dihydro-2-phenyl-9H-carbazol-4(3H)-one;5-Carbomethoxy-1,2-dihydro-2-phenyl-9-(phenylmethyl)carbazol-4(3H)-one;(2-Bromo-3-carbomethoxyanilino)-5-(4-chlorophenyl)cyclohex-2-en-1-one;5-Carbomethoxy-1,2-dihydro-2-(4-chlorophenyl)-9H-carbazol-4(3H)-one;5-Carbomethoxy-1,2-dihydro-2-(4-chlorophenyl)-9-(phenylmethyl)carbozol-4(3H)-one;(2-Bromo-3-carbomethoxyanilino)-5-(2-furyl)cyclohex-2-en-1-one;5-Carbomethoxy-1,2-dihydro-2-(2-furyl)-9H-carbazol-4(3H)-one;5-Carbomethoxy-1,2-dihydro-2-(2-furyl)-9-(phenylmethyl)carbazol-4(3H)-one;5-Carbomethoxy-1,2-dihydro-9-(phenylmethyl)-2-[(tri(-1-methylethyl)silyl)oxymethyl]carbazol-4(3H)-one;(3-Carbomethoxy-2-chloroanilino)cyclohex-2-en-1-one;5-Carbomethoxy-1,2-dihydro-9H-carbazol-4(3H)-one;(3-Carbomethoxy-2-bromoanilino)cyclohex-2-en-1-one;[(Phenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(3-Fluorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(3-Chlorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(3-Phenoxyphenyl)methyl-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(2-Fluorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(2-Trifluoromethylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(2-Benzylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(3-Trifluoromethylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(1-Naphthyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(2-Cyanophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(3-Cyanophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(2-Methylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(3-Methylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(3,5-Dimethylphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(3-lodophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(2-Chlorophenyl)methyl-5-carbomethoxy-1,2-dihydrocarbozol-4(3H)-one;[(2,3-Difluorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(2,6-Difluorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(2,6-Dichlorophenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(3-Trifluoromethoxyphenyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(2-Pyridyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(3-Pyridyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(Cyclohexyl)methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one;[(Cyclopentyl)-methyl]-5-carbomethoxy-1,2-dihydrocarbazol-4(3H)-one; ora pharmaceutically acceptable racemate, solvate, tautomer, opticalisomer, prodrug derivative or salt thereof.